Anatomy Final Exam- Male Reproduction

Question 1

Raphe

Answer 1

medial ridge between scrotums (exterior)

Question 2

ScrotalSeptum

Answer 2

dartos muscle separating two scrotums (interior)

Question 3

Cremaster Muscle

Answer 3

small bands descending through spermatic cord to surround the testis

Question 4

Sertoli cells

Answer 4

• form blood-testis barrier
• support, protect, nourish sperm
• get rid of excess spermatid cytoplasm
• control movement of sperm
• control release of sperm
• control production of sperm (inhibin)

Question 5

(Interstitial) Leydig’s Cells

Answer 5

produce testosterone

Question 6

Seminiferous Tubules

Answer 6

spermatogenesis

Question 7

Ejaculatory Duct

Answer 7

• union of seminal vesicle and amulla of vas deferens

- terminate in prostatic urethra where they eject

Question 8

Three Parts of Male Urethra

Answer 8

1. Prostatic
2. Membranous
3. Spongy

Question 9

Path of a Sperm

Answer 9

1. fluid secreted by sertoli cells creates pressure pushing sperm along lumen of seminiferous tubules into straight tubules
2. Straight tubules lead to rete testis to coiled efferent ducts to single ductus epididymis to vas defrens
3. degenerated sperm are reabsorbed through stereocilia (high SA)

Question 10

Epididymus

Answer 10

sperm maturation (14 days)

Question 11

Ductus (vas) Deferens

Answer 11

• convey sperm during arousal from epididymis to urethra by peristaltic contractions
• store sperm for months

Question 12

Ampulla

Answer 12

terminal end of vas deferens

Question 13

Seminal Vesicles

Answer 13

• produce fluid for sperm
• alkaline
• viscous
• fructose
• prostaglandins
• clotting

Question 14

Purpose of Fructose in Semen

Answer 14

ATP production in sperm

Question 15

Purpose of Prostaglandins in Semen

Answer 15

sperm motility and viability

-stimulate female orgasm

Question 16

Purpose of Alkaline in Semen

Answer 16

balances acidic urethra and vagina

Question 17

Purpose of Clotting Agent in Semen

Answer 17

helps semen coagulate after ejaculation

Question 18

Prostate

Answer 18

• donut shaped surrounding prostatic urethra

- secretes milky acidic fluid

Question 19

Use of…. In Prostate Secretion

1. Citric Acid
2. Proteolytic Enzymes
3. Acidic Phosphate
4. Seminal Plasmin

Answer 19

1. ATP production
2. break down clotting protein from seminal vesicle
3. unknown
4. antibiotic decreasing bacteria in semen and female

Question 20

Three Layers of Penis

Answer 20

1. Corpora Cavernosa
2. Corpus Spongiosum
3. Skin and Subcutaneous

Question 21

Corpus Spongiosum

Answer 21

keeps urethra open for ejaculation

Question 22

Cowper’s Gland (Bulbourethral)

Answer 22

• paired and pea sized below prostate

- secrete alkaline substance and mucus to lubricate penis decreasing damage to sperm during ejaculation

Question 23

Prostatic Secretion is _____ while Seminal Vesicle and cowper’s Fluid is ____

Answer 23

milky, sticky