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303 > Histo > Flashcards

Histo Flashcards

1
Q
  1. Which of the following structures that do not join the cords of rete testis?
A

Paragenital tubules

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2
Q
  1. which of the following is the gene that responsible stimulating the following structures?
    a. prostate gland
    b. seminal gland
A

HOX genes

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3
Q
  1. Which of the following is CORRECT regarding to the difference between the external genital system between the male and female?
A

In male genital system the urogenital folds fuse on the urogenital plate to form penile (spongy) urethra unlike female genital system that the urogenital folds do not fuse except posteriorly, where they join to form the frenulum of the labia minor

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4
Q
  1. Which of the following is responsible for the development of the external genital organs for female?
A

Estrogen

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5
Q
  1. Which of the following classes of sulfated acidic zona pleucida that can act as an inducer for acrosome reaction?
A

ZP3

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6
Q
  1. Which of the following factors that may cause enlargement of the oocyte?
    Or
    What happen during unilaminar primary follicle
A

Increase the size of granulosa cells
 Enlargement of oocyte
 Increase the size of granulosa cells so they
become cuboidal or columnar

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7
Q
  1. Which of the following is incorrect regarding androgen insensitive syndrome?

a. 46 xy DSD disorder of sexual development appears as female , present of testes 46 xy chromosome
b. external genitalia are female
c. vagina usually ends in a blind pouch and the uterus and uterine tube are absent or rudimentary
d. development of breast with female characteristic at puberty
e. menstruation does not occur, pubic hair is absent , enlarge clitoris and scrotum and resistant to testosterone
f. something wrong

A

something wrong

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8
Q
  1. Which of the following is wrong regarding follicular maturation?
A

The inner layer of stromal cells (the theca interna) remains small and compact and has no known secretory function

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9
Q

Which of the following is correct regarding antrum development?

A

The granulosa cells around the oocyte form a small hillock, the cumulus oophorus, which protrudes into the antrum.
And/or
The tightly adhering granulosa cells immediately surrounding the zona pellucida make up the corona radiata and accompany the oocyte when it leaves the ovary at ovulation

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10
Q
  1. Which of the following is incorrect regarding the ovulation?

a. the Graafian follicle is usually so large that it distorts the surface of the ovary; it appears to the naked eye as a small cystic mass bulging from the ovarian surface
b. covered only by a thin layer of germinal epithelium and membrane
c. something wrong

A

something wrong

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11
Q
  1. which of the following is true regarding mature follicle
A

bulge at the ovary surface visible with ultrasound

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12
Q
  1. Which of the following is wrong regarding to mature of graafian follicle ?
A

Granulosa layer also enlarged or thickened The correct answer for this Q
The granular layer gets thinner

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13
Q
  1. Which of the following hormones can be activated in ovulation?
    Or
    a. induces completion of the first stage of meiosis b. leads to disruption of the structure of the follicle as well.
    Which of the following have these characteristic regarding ovulation?
A

LH - luteinizing hormone

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14
Q

Which of the following is incorrect?
a. before ovulation – the oocyte completes first meiotic division , arrest in prophase
b. secondary meiotic division – after expulsion of first polar body, arrest in metaphase
c. a very small nonviable cell containing a nucleus and a minimal amount of cytoplasm.
d. first polar body contains most of the cytoplasm e. secondary oocyte contains almost all of the cytoplasm

A

d. first polar body contains most of the cytoplasm

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15
Q

Which of the following assist the antral development?

A

Estrogen

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16
Q
  1. Which of the following is the origin of LH?
A

Anterior pituitary gland

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17
Q
  1. which structure have the following characteristic, Producing large amounts of progesterone, estrogen and inhibin that inhibit hypothalamus and anterior pituitary?
A

Corpus luteum

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18
Q
  1. Which of the following is correct regarding the formation of corpus luteum?
A

Corpus luteum forms under the influence of LH

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19
Q
  1. Which of the following is correct regarding to stimulation of anterior pituitary?
A

GnRH produced by hypothalamus

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20
Q

Which of the following is correct regarding to follicular development?

A

FSH and LH stimulate follicular development

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21
Q
  1. Which of the following is incorrect regarding maturing ovarian follicle once inhibin had been secreted? Page 22
    a. low amount of estrogen stimulate hypothalamus and anterior pituitary
    b. large amount of estrogen stimulate the hypothalamus and anterior pituitary
    c. low amount of estrogen inhibit hypothalamus and anterior pituitary
    d. low FSH, low estrogen
A

The correct answer is A

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22
Q

Which of the following considered as a factor to increase follicular fluid?

A

Granulosa cells

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23
Q
  1. Which structure has the responsibility of the following functions?
    a. produced by granulosa cells in cumulus oophorus oocyte complex
    b. Increase the viscosity and swell
    c. increase the extracellular volume within the complex
    d. loosening its outer cells
    e. dissociating it from the follicle wall
A

correct answer is HYALURONAN

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24
Q
  1. Which of the following is true regarding ballooning of the stigma?
A

the ovarian wall weakens as activated plasminogen (plasmin) from broken capillaries degrades collagen in the tunica albuginea and surface epithelium

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25
Q

Which of the following decreasing in size with the passing years but never disappearing?

A

corpus albicans

26
Q
  1. Which of the following structures matches with the following functions?
    a. maintains and promotes further growth of the corpus luteum
    b. targets and activity similar to that of LH. c. stimulating secretion of progesterone to maintain the uterine mucosa.
A

human chorionic gonadotropin (hCG)

27
Q
  1. Which of the following is correct regarding sexual maturity?
A

High levels of estrogen inhibit FSH secretion and promotes secretion of LH

28
Q

In which of the following structures fertilization may occur?

A

Ampulla

29
Q
  1. Which of the following structures do not contain mucosal folds?
A

Intramural portion of the tube

30
Q

Which of the following is correct regarding the epithelium of the mucosa?

A

simple columnar epithelium with ciliated on a lamina propria of loose connective tissue

31
Q

Which of the following is correct?

Ciliated cells numerous near the ovarian end of the tube where they form the majority of the population
Minority population close to the uterus
Secretory cells predominate on the uterus end

A
32
Q

Which of the following may occur during the follicular growth phase of the ovarian cycle?

A

Hypertrophy

33
Q

Which of the following may occur during the late luteal phase?

A

atrophy with loss of cilia

34
Q

Which of the following may occur with progesterone effect?

A

Decrease in height and ciliation

35
Q

Which of the following transmembrane Ca+ channel protein that play and important role in spermatozoa hyperactivity reaction?

A

CatSpers (cation channels of sperm)

36
Q

Which of the following enzymes are responsible for penetrating the zona pellucida?

A

Hyaluronidases

37
Q

Which of the following enzymes can be released during zona reaction ?

A

Proteases of the cortical granules

38
Q
  1. Which structure responsible of the following? a. degrade the glycoprotein oocyte plasma membrane receptors for sperm binding
    b. form the perivitelline barrier, by cross-linking proteins on the surface of the zona pellucida.
    c. final and permanent block to polyspermy
A

Zona reaction. The released enzymes (proteases) of the cortical granules

39
Q
  1. which of the following is the epithelium of the uterus ?
A

Columnar epithelium

40
Q
  1. In Which of the following structures mitotic figures might be seen?
A

Proliferative endometrium

41
Q

what can be induced in the proliferative phase of uterus?

A

Estrogen

42
Q
  1. what can be released in the secretary phase
A

Progesterone from the corpos luteum induce the endometrium tissue to enter the secretory phase

43
Q
  1. In what phase the stromal tissue becomes more vascularized and edematous?
A

Secretory phase

44
Q

Which of the following is correct regarding the early secretory phase

A

early portion of the secretory phase, the glands begin to become tortuous, with a wider lumen. This change is due to increased activity of the glandular cells. One of the main products secreted by the endometrium is glycogen, which is initially located in the basal aspect of the glandular cell, displacing the nucleus toward the apical side of the cell. The secretory phase lasts approximately 12 days, after which the corpus luteum degenerates and the loss of progesterone results in another menstrual phase, continuing the cycle

45
Q

Which of the following arteries that undergo degeneration and regeneration with each menstrual cycle

A

Spiral arteries

46
Q
  1. Which of the following is the epithelium of the cervix?
A

Simple columnar epithelium

47
Q
  1. Which of the following glands structures present in the cevix?
A

Mucus-secreting cervical

48
Q

Which of the following does not present in the cevix?

A

Spiral arteries

49
Q

which of the following structures does not shed during menstruation

A

Cervix

50
Q

which of the following structures found in the external os towards the upper vagina

A

Exocervical mucosa

51
Q

Which of the following is the epithelium of the external os?

A

nonkeratinized stratified squamous epithelium

52
Q

Which of the following is correct regarding transformation zone?

A

The junction between this squamous epithelium and the mucus- secreting columnar epithelium of the endocervix occurs in the transformation zone, an area just outside the external os that shifts slightly with the cyclical changes in uterine size.

53
Q
  1. Which of the following is true regarding mucus secretion is abundant and watery during ovulation?
A

facilitating sperm movements into the uterus.

54
Q

Which of the following correctly describe the luteal phase?

A

In the luteal phase mucus is more viscous and hinders the passage of sperm.

55
Q
  1. which of the following is correct regarding the cervical effacement
A

Before parturition a process of cervical effacement occurs in which its connective tissue undergoes extensive remodeling and significant collagen removal, mediated in part by macrophages.

56
Q

Which of the following structures lack glands?

A

Wall of the vagina

57
Q
  1. Which of the following is true regarding to the epithelium of the vagina
A

Stratified squamous

58
Q
  1. Which of the following structure responsible for producing the mucus for vagina?
A

Cervical glands

59
Q

which of the following abundant in the skin over the mons pubis and labia majora?

A

Meissner’s corpuscles

60
Q

which of the following structures located deeper layers of the connective tissue and are found in the labia majora and in association with the erectile tissue?

A

Pacinian corpuscle

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