Reproductive A&P

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1

Purpose of meiosis

reduces chromosomes to 23 singles

2

Where does this type of cell division occur

testes/ovaries

3

Diploid

full set

4

Haploid

half set

5

at what time during fetal development do the testes descent to scrotum?

7 months, 28 weeks

6

Cryptorchidism

one or both testes haven't descended

7

what are the seminiferous tubules

produce sperm cells

8

What is the function of Leydig (interstitial) cells

Make testosterone

9

What hormone triggers the onset of puberty?

gnRH in hypothalamus

10

Where are LH and FSH produced

pituitary

11

What is the effect of LH in males

stimulates secretion of testosterone

12

What is the effect of FSH in males?

stimulates sperm production

13

Where do sperm mature

epididymis

14

Parts of the spermatic cord

Blood vessels, pampiniform plexus, nerves, lymphatics, cremaster muscle, dartos muscle, vas deferens

15

Hormone responsible for secondary sex characteristics

testosterone

16

Accessory sex glands and function?

seminal vesical, prostate gland, bulburethral gland,

all contribute to ejaculatory fluid

17

Parts of urthrea

bladder, prostatic urthrea, membranous, spongy/penile

18

What is the erectile tissue in penis?

Corpus cavernosa

19

Function of corpus spongiosum

make sure urethra stays open in erection

20

ANS is associated with erection of penis?

parasympathetic

21

ANS associated with ejaculation?

sympathetic

22

Menarche

first menstrual period

23

amennorhea

lack of menstruation

24

Menses

days 1-6, blood supply to endometrium cut off,

endometrium dies off,

Ovary- follicles begin to develop

25

Follicular (pre ov)

days 7-14, Uterus- repair & regeneration of endometrium, due to influence of estrogen,

Ovary- follicle developing

26

Ovulation

14th day, Ovary- surge of LH causes ovulation of oocyte from follicle

27

Luteal (post ov)

days 14-28, Uterus- continued to repair of endometrium due to progesterone, still estrogen

Ovary- remnant of follicle becomes corpus luteum, secretes progesterone

28

What is corpus luteum

the follicle remains that the egg came from, secretes progesterone

29

Where does fertilization normally occur?

fallopian tubes

30

What is an ectopic pregnancy

fertilized egg stops in fallopian tube

31

what happens at the end of the cycle if fertilization occurs?

HCG from fetal membrane keeps corpus luteum alive, progesterone produced still

32

what happens at the end of the cycle if fertilization does not occur?

not preg, Corpus luteum dies, progesterone decreases, vasoconstriction to endometrium, it dies, cycle repeats