Histologie Preparation (Pr. Chhut Sereyvathana)

/90

1 / 90

Identify the CORRECT statement

a. The secretory ducts of sweat gland are lined by a stratified squamous epithelium.

b. The synthesis of melanin by basal cells is under hormonal control.

c. The excretory ducts of sweat gland are lined by a stratified squamous epithelium.

d. The papillary layer of the dermis contains fine collagen and elastic fibers and the capillary network which supplies the epidermis.

e. Merocrine sweat glands, sebaceous glands and hair together form a pilosebaceous unit.

2 / 90

Which of the following consists of stratified (two-layered) cuboidal epithelium?

a. hair follicle.

b. sebaceous gland.

c. duct of sweat gland.

d. secretory portion of sweat gland.

e. arrector pili muscle.

3 / 90

The outer lining of Bowman’s capsule (the parietal epithelilum) consists of a single layer of:

a. pericytes

b. podocytes

c. cuboidal cells.

d. mesangial cells.

e. squamous cells.

4 / 90

Transitional epithelium lines all of the following EXCEPT the:

a. renal pelvis.

b. Bowman's capsule.

c. ureter.

d. proximal urethra.

e. bladder.

5 / 90

Podocytes are:

a. unique epithelial cells with many interdigitating processes.

b. not epithelial cells.

c. simple columnar epithelial cells.

d. simple squamous epithelial cells.

e. simple cuboidal epithelial cells.

6 / 90

Which of the following is CORRECT regarding the stratum spinosum?

a. Langerhans cells are found mostly in the stratum spinosum.

b. The stratum spinosum sits between the stratum corneum and the stratum granulosum.

c. The cells of the stratum spinosum are flat without nuclei.

d. Merkel cells are the outermost sentinels of the cellular immune system.

e. The stratum spinosum is formed from daughter cells of the stratum corneum.

7 / 90

The fibrous connective tissue layer of skin is:

a. lamina propria

b. dermis

c. mucosa

d. epidermis

e. hypodermis

8 / 90

Which cells secrete a product which converts angiotensinogen to angiotensin?

a. epithelial cells of Bowman's capsule.

b. podocytes.

c. epithelial cells of proximal and distal convoluted tubules.

d. epithelial cells of collecting duct.

e. juxtaglomerular cells.

9 / 90

Identify the CORRECT statement(2)

a. Juxtaglomerular cells surrounding the afferent arteriole of the glomerulus release angiotensin II to increase glomerular filtration.

b. Transitional epithelium lining the tubules of the nephron allows the tubules to expand if large amounts of primary urine are formed.

c. Collecting ducts are not permeable to water in the presence of antidiuretic hormone.

d. The macula densa is formed by a specialized section of the epithelium lining the distal tubule as it contacts the glomerulus and its afferent and efferent arterioles.

e. The glomerular filtration barrier is formed by the cells of the parietal layer of Bowman's capsule and the basal lamina of the glomerular capillaries.

10 / 90

10)

Identify the CORRECT statement

a. A distinct zona pelucida separates the oocyte and follicular cells of primordial ovarian follicles.

b. Complex mucosal folds give the lumen of the ampulla of the oviduct a very irregular outline.

c. The functionalis of the endometrium of uterus and cervix is shed during menstruation.

d. Collecting ducts are not permeable to water in the presence of antidiuretic hormone (ADH).

e. Like sweat glands, mammary glands are simple tubular glands.

11 / 90

11)

Identify the INCORRECT statement

a. The prophase of primary spermatocytes is extremely prolonged.

b. The first meiotic division of primary spermatocytes will give rise the secondary spermatocytes.

c. The maturation of spermatids into spermatozoides is called spermiogenesis.

d. Leydig cells provide structural and nutritional support for the developing spermatocytes.

e. The testes are surrounded by a thick connective tissue capsule, the tunica albuginea.

12 / 90

12)

Identify the INCORRECT statement

a. Long nephron contains large renal corpuscle

b. The lamina rara externa of the GBM is attaching to the podocyte

c. The afferent arteriole will branch to capillaries of the glomerulus.

d. Short nephron contains large renal corpuscle which is located near the medulla

e. The normal thickness the GBM is between 300 and 350 micrometers.

13 / 90

13)

The tissue composition of hair follicles is most similar to:

a. hypodermis

b. reticular layer of dermis.

c. sweat gland.

d. epidermis

e. papillary layer of dermis.

14 / 90

14)

Which epithelial cells of the urinary tract are specialized with an apical brush border of microvilli?

a. Bowman's capsule epithelium.

b. collecting duct epithelium.

c. epithelium lining the thin segment of the loop of Henle.

d. proximal convoluted tubule epithelium.

e. distal convoluted tubule epithelium.

15 / 90

15)

Glomerular capillaries are supported on the outside (adjacent to the urinary space) by:

a. pericytes

b. juxtaglomerular cells.

c. mesangial cells.

d. podocyte foot processes.

e. fibroblasts

16 / 90

16)

Which cell type of the epidermis is involved in the mediation of immune responses?

a. Langerhans cell

b. Merkel cell

c. myoepithelial cell

d. melanocyte

e. keratinocyte

17 / 90

17)

The region of the kidney containing distal convoluted tubules is called the:

a. hilus

b. pelvis

c. cortex

d. capsule

e. medulla

18 / 90

18)

In which layer of the epidermis are cells mitotically active?

a. stratum granulosum

b. stratum lucidum

c. thick skin

d. stratum corneum

e. stratum basale

19 / 90

19)

The normal thickness of the glomerular basement membrane (the GBM) is between:

a. 30 and 35 nanometers.

b. 3 and 3.5 micrometers.

c. 0.3 and 0.35 micrometers.

d. 300 and 350 micrometers.

e. 30 and 35 micrometers.

20 / 90

20)

Identify the INCORRECT statement.

a. Growth of the mammary gland is initiated by oestrogen and progesterone produced in the ovaries and placenta.

b. After ovulation, thecal cells and granulosa cells form the corpus luteum.

c. Hormone production of the corpus luteum stops after the implantation of the embryo.

d. The term "atresia" refers to the degeneration of follicles during development and adult life.

e. The epithelium that lines the ductuli efferntes is ciliated pseudostratified columnar epithelium.

21 / 90

21)

Identify the INCORRECT statement

a. The parietal layer of Bowman’s capsule in a simple squamous epithelium.

b. The increase in the surface area of proximal tubule cells by numerous long microvilli facilitates the absorption of nutritionally valuable substances from the primary urine.

c. The filtration slit membrane between the pedicels of podocytes is part of the glomerular filtration barrier.

d. Juxtaglomerular cells surrounding the afferent arteriole of the glomerulus release angiotensin II to increase glomerular filtration.

e. The osmotic absorption of water by the proximal tubule cells reduces the volume of the primary urine by about 75%.

22 / 90

22)

The projections of dermis upward, indenting the bottom of the epidermis, are called:

a. epidermal appendages

b. sweat gland ducts

c. dermal papillae

d. arrector pili muscle

e. Meissner's corpuscles

23 / 90

23)

The basement membrane lies between:

a. stratum spinosum and stratum granulosum.

b. epidermis and dermis.

c. papillary and reticular layers of dermis.

d. stratum granulosum and stratum corneum.

e. stratum basale and stratum spinosum.

24 / 90

24)

Arteries which form arches along the border between the cortex and the medulla of the kidney are called:

a. afferent arteries.

b. vasa recta.

c. arcuate arteries.

d. interlobular arteries.

e. interlobar arteries.

25 / 90

25)

Regions of cortical parenchyma located between medullary pyramids (pyramids of Malpighii) rather than adjacent to the surface of the kidney are called:

a. medullary rays.

b. calyces

c. renal lobules.

d. papillae

e. columns of Bertin.

26 / 90

26)

The region of the kidney where artery, vein and ureter are attached is called the:

a. medulla.

b. pelvis.

c. cortex.

d. calyx.

e. hilus.

27 / 90

27)

The capsule of the kidney consists of:

a. endothelium.

b. dense fibrous connective tissue.

c. loose cellular connective tissue with many lymphocytes.

d. transitional epithelium.

e. adipose connective tissue.

28 / 90

28)

Juxtaglomerular cells secrete:

a. renin.

b. urea.

c. aldosterone.

d. angiotensinogen.

e. antiduretic hormone.

29 / 90

29)

Identify the INCORRECT statement

a. The principal function of the thin tubule of the nephron is the resorption of nutritionally valuable substances from the primary urine.

b. The increase in the surface area of proximal tubule cells by numerous long microvilli facilitates the absorption of nutritionally valuable substances from the primary urine.

c. Stratified squamous epithelium lines the distal part of the male and female urethra.

d. Transitional epithelium lines the ureter.

e. Podocytes form the visceral layer of Bowman's capsule.

30 / 90

30)

Identify the INCORRECT statement

a. The epithelium that lines the rete testis is a simple cuboidal epithelium.

b. Ejaculation results from smooth muscle contractions around the vas deferens and ductus epididymis.

c. Spermatids divide to give rise to spermatocytes.

d. The ducts which form the rete testis connect the tubuli recti with the ductuli efferentes.

e. The seminiferous epithelium consists of spermatogenic cells and Sertoli cells.

31 / 90

31)

Which structures are present in “thick skin” (i.e., palmar and plantar skin)?

a. hair follicles.

b. apocrine sweat glands.

c. sebaceous glands.

d. sweat glands.

e. arrector pili.

32 / 90

32)

Which cell type is not normally found in the epidermis?

a. Langerhans cells.

b. keratinocytes (or "prickle cells").

c. Merkel cells.

d. melanocytes

e. fibroblasts

33 / 90

33)

Which layer is exceptionally thick in so-called “thick skin” (i.e., palmar and plantar skin)?

a. dermis

b. papillary dermis

c. hypodermis

d. stratum corneum of epidermis

e. stratum basale of epidermis.

34 / 90

34)

Arrector pili muscle consist of:

a. columnar epithelium.

b. lymphocytes

c. squamous epithelium.

d. smooth muscle.

e. glandular epithelium.

35 / 90

35)

The region of the kidney containing long loops of Henle is called the:

a. cortex

b. papillae

c. calyx

d. medulla

e. pelvis

36 / 90

36)

Identify the INCORRECT statement

a. The mammary gland is a merocrine and apocrine secretion.

b. The formation of new oocytes stops before birth.

c. Primordial ovarian follicles are characterized by a single layer of flattened follicular cells which surround the oocyte.

d. Growth of the mammary gland is initiated by oestrogen and progesterone produced in the ovaries and placenta.

e. Like sweat glands, mammary glands are simple tubular glands.

37 / 90

37)

Which of the following is NOT an “epidermal appendage” (i.e., NOT comprised of epithelial tissue)?

a. hair follicle.

b. arrector pili muscle.

c. secretory portion of sweat gland.

d. sebaceous gland.

e. duct of sweat gland.

38 / 90

38)

Identify the CORRECT statement

a. Hormone production of the corpus luteum stops after the implantation of the embryo.

b. After ovulation, thecal cells and granulosa cells form the corpus luteum.

c. The tubuli recti join the ductuli efferentes to the ductus epididymis.

d. A distinct zona pelucida separates the oocyte and follicular cells of primordial follicles.

e. A fluid filled hollow, the antrum, is a characteristic feature of primary follicles.

39 / 90

39)

Identify the CORRECT statement

a. Differences in the height of the epithelium give the lumen of the ductuli efferentes an irregular outline.

b. The rete testis is lined by stratified squamous epithelium.

c. Spermatocytes are stored in the terminal part of the seminal vesicles.

d. Spermatocytes which leave the testis are structurally mature and motile.

e. The Sertoli cells are located outside the seminiferous tubule.

40 / 90

40)

Identify the INCORRECT statement(6)

a. Each testis contains about 500 to 1000 seminiferous tubules.

b. Spermatids divide to give rise to spermatocytes.

c. The tunica albuginea is composed of dense fibrous connective tissue.

d. There are two vaginalis layers, parietal and visceral.

e. Leydig cells are located outside the seminiferous tubule and they secrete testosterone.

41 / 90

41)

Identify the CORRECT statement

a. The renal lobule contains many renal lobes.

b. The protein albumin is normally filtrated in the glomerulus.

c. Short nephron contains small renal corpuscle located near the renal capsule.

d. The lamina rara interna of the GBM is attaching to the podocyte.

e. The capillaries of the glomerulus are continuous type.

42 / 90

42)

Identify the INCORRECT statement

a. Primordial ovarian follicles are characterized by a single layer of flattened follicular cells which surround the oocyte.

b. The mammary glands are modified glands of the skin.

c. Progesterone and oestrogen are the main stimulants of milk secretion in the mammary gland.

d. The basalis of the endometrium regenerates the functionalis after menstruation.

e. Prolactin and oxytocin are the main stimulants of milk secretion in the mammary gland.

43 / 90

43)

Identify the INCORRECT statement

a. Sensory stimulation of the nipple initiates the milk ejection reflex via the secretion of oxytocin from the neurohypophysis.

b. The acini of the secretory part of the mammary gland are formed during pregnancy.

c. The mammary glands are modified glands of the skin.

d. Primordial ovarian follicles are characterized by a single layer of flattened follicular cells which surround the oocyte.

e. The functionalis of the endometrium of uterus and cervix is shed during menstruation.

44 / 90

44)

The glands most closely associated with hair follicles are:

a. mammary glands.

b. sebaceous glands.

c. submucosal glands.

d. eccrine sweat glands.

e. lymphatic glands.

45 / 90

45)

Which of the following is CORRECT regarding the stratum spinosum?

a. The stratum spinosum sits between the stratum corneum and the stratum granulosum.

b. The stratum spinosum is formed from daughter cells of the basal layer.

c. Merkel cells are the outermost sentinels of the cellular immune system.

d. Langerhans cells are found mostly in the stratum corneum.

e. The cells of the stratum spinosum are flat without nuclei.

46 / 90

46)

Identify the CORRECT statement(4)

a. The outer layer of renal capsule contains many myofibroblasts.

b. The incomplete basal lamina of the discontinuous glomerular capillaries facilitates the formation of the glomerular filtrate.

c. The pyramid of Malpighi is in the renal cortex

d. Stratified squamous epithelium lines the distal part of the male and female urethra.

e. Transitional epithelium lining the tubules of the nephron allows the tubules to expand if large amounts of primary urine are formed.

47 / 90

47)

Which of the following layers lies nearest the outer surface of the epidermis?

a. stratum spinosum or stratum Malpighii.

b. stratum corneum.

c. stratum basale or stratum germinativum.

d. stratum lucidum.

e. stratum granulosum

48 / 90

48)

Which cells repond to antiduretic hormone (ADH)?

a. epithelial cells of collecting duct.

b. epithelial cells of Bowman's capsule.

c. juxtaglomerular cells.

d. podocytes.

e. mesangial cells.

49 / 90

49)

Identify the INCORRECT statement

a. The filtration slit membrane between the pedicles of podocytes is part of the glomerular filtration barrier.

b. The macula densa cells are found in the distal tubule faced to the vascular pole.

c. Stratified squamous epithelium lines the distal part of the male and female urethra.

d. Renin is released by juxtaglomerular cells which surround the afferent arteriole of the glomerulus.

e. An inner layer of circular smooth muscle and an outer layer of longitudinal smooth muscle are found in both the ureter and bladder.

50 / 90

50)

Identify the INCORRECT statement(2)

a. The wall of the vagina consists of a mucosa, muscularis mucosae, submucosa, muscularis and adventitia.

b. The mammary glands are modified glands of the skin.

c. Sensory stimulation of the nipple initiates the milk ejection reflex via the secretion of oxytocin from the neurohypophysis.

d. The formation of new oocytes stops before birth.

e. The vagina is lined by stratified squamous epithelium.

51 / 90

51)

Identify the CORRECT statement

a. Leydig cells provide structural and nutritional support for the developing spermatocytes.

b. Leydig cells are located inside the seminiferous tubule.

c. Ejaculation results from smooth muscle contractions around the vas deferens and ductus epididymis.

d. Spermatocytes which leave the testis are structurally mature and motile.

e. The outer part of the seminiferous epithelium is formed by 3-4 layers of smooth muscle.

52 / 90

52)

Which cell type is responsible for the pigmentation of the skin?

a. Langerhans cell

b. keratinocyte

c. myoepithelial cell

d. melanocyte

e. fibroblast

53 / 90

53)

Which of the following typically includes dead cells with pyknotic nuclei?

a. hair follicle.

b. secretory portion of sweat gland.

c. duct of sweat gland.

d. arrector pili muscle.

e. sebaceous gland.

54 / 90

54)

Identify the INCORRECT statement

a. The term "atresia" refers to the degeneration of follicles during development and adult life.

b. After ovulation, thecal cells and granulosa cells form the corpus luteum.

c. A fluid filled hollow, the antrum, is a characteristic feature of primary ovarian follicles.

d. Primordial ovarian follicles are characterized by a single layer of flattened follicular cells which surround the oocyte.

e. Ovarian surface is lined by simple cuboidal epithelium

55 / 90

55)

Vessels which connect interlobular arteries with glomerular capillaries are called:

a. peritubular capillaries.

b. vasa recta.

c. afferent arterioles.

d. efferent arterioles.

e. arcuate arteries.

56 / 90

56)

Identify the INCORRECT statement(1)

a. Podocytes form the visceral layer of Bowman's capsule.

b. The transport of sodium ions over the epithelia lining the ascending thin and straight distal tubules creates the osmotic gradient necessary for the resorption of water from the urine passing through the collecting ducts.

c. The osmotic absorption of water by the proximal tubule cells reduces the volume of the primary urine by about 75%.

d. The glomerular filtration barrier is formed by the cells of the parietal layer of Bowman's capsule and the basal lamina of the glomerular capillaries.

e. The glomerular filtration slit is around 20 to 30 nm.

57 / 90

57)

The region of glomerulus (renal corpuscle) where the urinary space drains into the proximal convoluted tubule is called the:

a. urinary (tubular) pole

b. mesangium.

c. juxtaglomerular apparatus.

d. vascular pole.

e. area cribosa.

58 / 90

58)

Which of the following is CORRECT regarding the epidermis?

a. The stratum basale consist of non-dividing keratinocytes.

b. The epidermis is defined as a stratified squamous epithelium.

c. The stratum basale is secured to the basement membrane by zonula adherens.

d. The main cell of the epidermis is the polyhedral cell.

e. There are six layers to the epidermis.

59 / 90

59)

The macula densa consists of:

a. closely-packed nuclei in the epithelium of the proximal convoluted tubule.

b. closely-packed nuclei in the epithelium of the distal convoluted tubule.

c. extraglomerular mesangial cells.

d. modified smooth muscle cells.

e. densely packed collagen fibers in the juxtaglomerular interstitium.

60 / 90

60)

Which of the following layers lies nearest the dermis?

a. stratum lucidum.

b. stratum spinosum or stratum Malpighii.

c. stratum basale or stratum germinativum.

d. stratum corneum.

e. stratum granulosum.

61 / 90

61)

The loose, adipose connective tissue layer of skin is:

a. epidermis

b. hypodermis

c. mucosa

d. dermis

e. lamina propria

62 / 90

62)

Identify the CORRECT statement

a. Testosterone produced by the male accessory reproductive glands (seminal vesicle and prostate) causes the development of the masculine extragenital sex characteristics.

b. The Sertoli cells are located outside the seminiferous tubule.

c. The testes are surrounded by a thick connective tissue capsule, the tunica albuginea.

d. By the first meiotic division B-spermatogonia give rise to primary spermatocytes.

e. The outer part of the seminiferous epithelium is formed by 3-4 layers of smooth muscle.

63 / 90

63)

Interstitial cells within the renal glomerulus, whose functions are uncertain but may include phagocytosis and maintenance of the glomerular basement membrane, are the:

a. transitional epithelium.

b. juxtaglomerular cells.

c. macula densa.

d. mesangial cells.

e. podocytes.

64 / 90

64)

Identify the CORRECT statement

a. The granulosa cells of the ovarian follicle secrete progesterone.

b. A distinct zona pelucida separates the oocyte and follicular cells of primordial ovarian follicles.

c. The term "atresia" refers to the degeneration of follicles during development and adult life.

d. Progesterone and oestrogen are the main stimulants of milk secretion in the mammary gland.

e. The corpus albicans of the ovary is the functional homologue of the tunica albuginea in males.

65 / 90

65)

Filtration slits are located between adjacent:

a. mesangial cells.

b. capillary endothelial cells.

c. layers of the glomerular basement membrane.

d. capillary fenestrations.

e. podocyte foot processes

66 / 90

66)

Which of the following epithelial cells of the urinary tract are simple squamous, without apparent structural specialization?

a. glomerular epithelium (podocytes).

b. transitional epithelium.

c. distal convoluted tubule epithelium.

d. Bowman's capsule epithelium.

e. collecting duct epithelium.

67 / 90

67)

Identify the CORRECT statement(7)

a. The glomerular filtration barrier is formed by the cells of the parietal layer of Bowman's capsule and the basal lamina of the glomerular capillaries.

b. The incomplete basal lamina of the discontinuous glomerular capillaries facilitates the formation of the glomerular filtrate.

c. The macula densa is formed by a specialized section of the epithelium lining the distal tubule as it contacts the glomerulus and its afferent and efferent arterioles.

d. The parietal layer of Bowman’s capsule contains mesangial cells.

e. Juxtaglomerular cells surrounding the afferent arteriole of the glomerulus release angiotensin II to increase glomerular filtration.

68 / 90

68)

The region of the kidney containing larger collecting ducts is called the:

a. calyx

b. cortex

c. papilla

d. pelvis

e. medulla

69 / 90

69)

Which of the following is CORRECT regarding the stratum basale?

a. Melanocytes store melanin, which is synthesized by keratinocytes.

b. Merkel cells are involved in immune responses.

c. The main cell type of the stratum basale is the melanocyte.

d. The stratum basale consists of non-dividing keratinocytes.

e. Forms the base layer of the epidermis.

70 / 90

70)

Identify the INCORRECT statement(5)

a. An inner layer of circular smooth muscle and an outer layer of longitudinal smooth muscle are found in both the ureter and bladder.

b. The increase in the surface area of proximal tubule cells by numerous long microvilli facilitates the absorption of nutritionally valuable substances from the primary urine.

c. Renin is released by juxtaglomerular cells which surround the afferent arteriole of the glomerulus.

d. The second meiotic division of secondary spermatocytes will give rise the spermatids.

e. The macula densa is formed by a specialized section of the epithelium lining the distal tubule as it contacts the glomerulus and its afferent and efferent arterioles.

71 / 90

71)

Identify the INCORRECT statement

a. The epithelium of the tubuli recti is pseudostratified columnar.

b. Testosterone produced by the male accessory reproductive glands (seminal vesicle and prostate) causes the development of the masculine extragenital sex characteristics.

c. Processes of Sertoli cells form the blood-testis barrier.

d. The seminiferous epithelium consists of spermatogenic cells and Sertoli cells.

e. The prophase of primary spermatocytes is extremely prolonged.

72 / 90

72)

The region of the kidney containing glomeruli is called the:

a. papillae.

b. medulla.

c. pelvis.

d. calyx.

e. cortex

73 / 90

73)

Which layer of the epidermis is responsible for the barrier function of the epidermis?

a. stratum basale

b. stratum granulosum

c. stratum spinosum

d. stratum corneum

e. thin skin

74 / 90

74)

Mesangial cells are:

a. not epithelial cells.

b. simple columnar epithelial cells.

c. simple cuboidal epithelial cells.

d. simple squamous epithelial cells.

e. unique epithelial cells with many interdigitating processes.

75 / 90

75)

Identify the CORRECT statement(3)

a. "Tertiary follicle", "preovulatory follicle" and "Graafian follicle" are synonymous terms.

b. A distinct zona pelucida separates the oocyte and follicular cells of primordial ovarian follicles.

c. Hormone production of the corpus luteum stops after the implantation of the embryo.

d. The secondary ovarian follicle contains no antrum.

e. The infundibulum of the oviduct passes through the wall of the uterus.

76 / 90

76)

Identify the INCORRECT statement

a. Sebaceous gland is a simple branched alveolar gland.

b. Merocrine and apocrine sweat glands are simple tubular coiled glands.

c. . Langerhans cells function in the immune system and can leave the epidermis after exposure to antigens.

d. Merocrine sweat glands, sebaceous glands and hair together form a pilosebaceous unit.

e. The renewal of the human epidermis through the mitotic activity of basal cells takes 3-4 weeks.

77 / 90

77)

Identify the CORRECT statement(1)

a. Podocytes form the parietal layer of Bowman’s capsule.

b. The glomerular filtration barrier is formed by the cells of the parietal layer of Bowman's capsule and the basal lamina of the glomerular capillaries.

c. The incomplete basal lamina of the discontinuous glomerular capillaries facilitates the formation of the glomerular filtrate.

d. Stratified squamous epithelium lines the distal part of the male and female urethra.

e. The principal function of the thin tubule of the nephron is the resorption of nutritionally valuable substances from the primary urine.

78 / 90

78)

The lumen of glomerular capillaries is lined by:

a. podocytes foot processes.

b. fenestrated endothelium.

c. juxtaglomerular cells.

d. mesangial cells.

e. continuous endothelium.

79 / 90

79)

Identify the INCORRECT statement

a. The mammary glands are modified glands of the skin.

b. The myometrium of the uterus is important for the transport of the oocyte and sperm.

c. The basalis of the endometrium regenerates the functionalis after menstruation.

d. Growth of the mammary gland is initiated by oestrogen and progesterone produced in the ovaries and placenta.

e. The mammary gland contains 15 to 20 lobes.

80 / 90

80)

Vessels which connect glomerular capillaries with peritubular capillaries are called:

a. efferent arterioles.

b. arcuate arteries.

c. peritubular capillaries.

d. vasa recta.

e. afferent arterioles.

81 / 90

81)

Which connective tissue layer lies closest to the epidermis:

a. stratum corneum

b. papillary layer of dermis.

c. hypodermis

d. reticular layer of dermis.

e. lamina propria

82 / 90

82)

The epithelial layer of skin is:

a. lamina propria

b. epidermis

c. mucosa

d. dermis

e. hypodermis

83 / 90

83)

Smooth muscle cells of renal arterioles which are modified for endocrine secretion are called:

a. fibroblasts

b. podocytes

c. pericytes

d. juxtaglomerular cells.

e. mesangial cells.

84 / 90

84)

Which segment of the nephron functions to filter fluid from blood into urinary space?

a. distal convoluted tubule.

b. loop of Henle.

c. glomerulus.

d. proximal convoluted tubule.

e. collecting duct.

85 / 90

85)

The region of glomerulus (renal corpuscle) where the capillary tuft is attached is called the:

a. vascular pole.

b. area cribosa.

c. mesangium

d. urinary (tubular) pole.

e. juxtaglomerular apparatus.

86 / 90

86)

The region of the kidney containing proximal convoluted tubules is called the:

a. papillae

b. pelvis

c. cortex

d. calyx

e. medulla

87 / 90

87)

Identify the INCORRECT statement

a. Langerhans cells function in the immune system and can leave the epidermis after exposure to antigens.

b. The epidermis of the thin skin has four stratum

c. The overall orientation of collagen fibers in the dermis will follow the 'lines of greatest tension'.

d. The renewal of the human epidermis through the mitotic activity of basal cells takes 3-4 weeks.

e. The excretory ducts of sweat gland are lined by a stratified squamous epithelium.

88 / 90

88)

In which layer of the epidermis do cells contain keratohyalin granules?

a. pilosebaceous unit

b. hairy skin

c. hair follicle

d. stratum granulosum

e. papillary dermis

89 / 90

89)

Which cells respond to aldosterone?

a. juxtaglomerular cells.

b. mesangial cells.

c. epithelial cells of Bowman's capsule.

d. epithelial cells of distal tubules.

e. podocytes.

90 / 90

90)

Identify the INCORRECT statement

a. The prophase of primary spermatocytes is extremely prolonged.

b. By the first meiotic division B-spermatogonia give rise to primary spermatocytes.

c. Differences in the height of the epithelium give the lumen of the ductuli efferentes an irregular outline.

d. Each seminiferous tubule is about 30 to 80 cm long.

e. The ducts which form the rete testis connect the tubuli recti with the ductuli efferentes.

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និស្សិតអាចប្រាប់មកកាន់ពួកយើងបានដើម្បីកែកំហុស ឬអំពីបញ្ហាដោយអចេតនាណាមួយដែលកើតមានកំឡុងពេលធ្វើតេស្ត