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Flashcards in male reproductive Deck (25):
1

what is the dartos muscle?

thin muscle layer that covers the scrotum
-brings it toward the body

2

what kind of muscle is cremaster muscle?

skeletal
-extrusion of internal oblique

3

what is contained in the spermatic cord?

ductus deferens
nerves
testicular artery
lymph vessel
pampiniform plexus of testicular veins

4

what are contained in the lobules of the testes?

seminiferous tubules

5

what is the mediastinum testis?

hilum of the testes

6

what is the sustentacular cells?

support cells for the developing sperm within the seminiferous tubules

7

what is the role of leydig cells?

produce androgens (testosterone)

8

what does LH do in males?

stimulates leydig cells to produce testosterone (located in the interstitial space)

9

what does FSH do in males?

acts indirectly to stimulate spermatogenesis

10

where do the blood vessels, ducts, lymphatic vessels and nerves enter the testes?

mediastinum testis

11

which cells produce the sperm?

sertoli cells (sustenacular cells) within the seminiferous tubules

12

what is the final stage of spermatogenesis called?

spermiogenesis (sperm becomes motile and gains acrosomal cap)

13

what is contained in the midpiece of the sperm?

mitochondria

14

what is contained in the acromosal cap?

protease
hyaluronidase (to penetrate egg)

15

what is responsible for resorbing of sperm?

sterocilia in epididymis

16

what is the histology of the epididymis and vas deferens?

pseudostratified ciliated columnar

17

where do the seminal vesicle and the ampulla of the vas deferens meet?

ejaculatory duct

18

which fluid makes up 60% of semen?

seminal fluid

19

what are the components of the seminal fluid?

fructose
prostaglandins (causes os to widen)
clotting proteins (coagulates semen w/in 5 min of ejaculation)

20

what makes up 25% of semen?

prostatic fluid

21

what does the prostate secrete?

citric acid
seminalplasmin (abx)
PSA (liquifies semen w/in 10-20 minutes after ejaculation)

22

what is the function of the bulbourethral secretions?

lubricant and neutralizes urine in urethra

23

which muscle is responsible for ejaculationa?

bulbospongiosus

24

what is erectile tissue composed of?

blood sinuses surrounded by epithelial cells surrounded by smooth muscle

25

what chemical is responsible for erection?

NO relaxes smooth muscle of arterioles

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