Aug31 M3-Week 1 Review Flashcards

1
Q

which enzyme makes testo into estrogen

A

aromatase

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2
Q

deficiency of 21-alpha hydroxylase causes what

A

congenital adrenal hyperplasia. 2 types

  1. early. classical, born with it, ambiguous genitalia from high androgen + salt wasting. dx at birth
  2. late onset. some enzyme fct. sx = acne, hirsutism, irregular cycles, virilization
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3
Q

hormones from post pit

A

oxytocin and vasopressin

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4
Q

in the endometrium, follicular phase is to the _______ what the luteal phase is to the secretory phase

A

proliferative

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5
Q

how sex steroids act (mech of action)

A

enhance transcription when bound to Rs

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6
Q

what stimulates the production of progesterone by the corpus luteum

A

LH

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7
Q

why pituitary hormone increases if the communication from the hypothalamus is severed

A

prolactin (bc dopamine of H inhibits prolactin of pit)

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8
Q

which hormone inhibits the secretion of FSH?

A

Inhibin

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9
Q

which hormone stims prod of FSH

A

activin (prod by ovary)

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10
Q

inhibin B specific effect and comes from where

A
  • produced with estrogen

- diminishes FSH prod

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11
Q

name of undiff spermatogenic cells

A

spermatogonia

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12
Q

normal conc of spermatozoa in a sperm analysis

A

normal is above 15 million per mL

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13
Q

normal motility %

A

above 32%

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14
Q

% of sperms that should have a normal form

A

4%

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15
Q

male gametes: what cell undergoes meiotic division to give haploid cells

A

primary spermatocytes

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16
Q

parts of the spermatic cord

A
  • vas
  • testicular a and v
  • lymphatic vessels
  • *NOT ejaculatory duct
17
Q

vasectomies = what organ

A

ligate vas deferens

18
Q

function of fructose in semen

A

provide an energy source for ATP production by sperm