Reproductive

Question 1

path of sperm

Answer 1

testes (seminif tubules)–> epididymis –> vas deferens –> ejaculatory duct (after jointed by seminal vesicle) –> urethra

Question 2

testes anatomy - name the layers of the testicle

Answer 2

skin –> dartos muscle –> ext spermatic fascia (ext oblique) –> cremaster (internal oblique) –> internal spermatic fascia –> tunical vaginalis parietal –> tunica vaginalis visceral –> tunica albuginea –> septa/lobules (250/testis) –> seminiferous tubules (1-4/lobule) –> tubulus rectus –> rete testis –> efferent ductules –> vas deferens –> ampulla –> ejac duct –> urethra

Question 3

what is the epithelial layer of the epididymis?

Answer 3

pseudostrat columnar epith w/ sterocilia

Question 4

purpose of sertoli cells? Where are they located

Answer 4

nourish developing sperm, form blood testis barrier to protect sperm

flat cell found near epithelium ofseminif tubule

Question 5

purpose of leydig cells? where are they found

Answer 5

interstitium. produce T

Question 6

what is the development of sperm? (stop at last stage embedded in sem tubule w/ tail sticking out)

Answer 6

1) spermatogonium (Type a + b: stem cells vs progenitor cells)
2) primary spermatocyte (large + speckled w/ dividing chromatin)
3) secondary spermatocyte x2 (difficult to see)
4) spermatid x 4

Question 7

spermatid –> spermatozoa is called?

Answer 7

spermiogenesis

Question 8

folliculogenesis

Answer 8

1) primordial follicle (oogonium + squamous granulosa cells)

2) primary follicle (primary oocyte + cuboidal granulosa)
- – UNILAMINAR: squamous cuboidal granulosa, immature zona pellucida
- —MULTILAMINAR: stratified cuboidal granulosa, start producing LIQUOR FOLLICULI, mature zona pellucida

3) secondary follicle/antral: stratified cuboidal granulosa, antrum, mature zona pellucida, corona radiata + cumulus oophorus, theca interna + externa
4) Graafnian follicle -> ovulation
5) corpus luteum (granulosa cells)
6) corpus albicans

Question 9

describe the 3 layers of the uterine lining

Answer 9

perimetrium, myometrium, endometrium

loose CT –> smooth muscle –> basal endometrium (straight arteries) + functional endometrium (spiral arteries)

Question 10

describe the menstrual cycle

Answer 10

increased LH/FSH after menses –> follicular development –> increased E –> (+ feedback) LH surge –> ovulation –> corpus luteum –> increased progesterone –> build endometrial fund layer –> reinstate E (- feedback) –> low lvls of E = high LH/FSH –> menses