Male Reproductive System

Question 1

testes

Answer 1

sperm-producing male gonads that lie within the scrotum

Question 2

Sperm is delivered to body through system of ducts:

Answer 2

epididymis, ductus deferens, ejaculatory duct, urethra

Question 3

accessory sex glands

Answer 3

seminal glands, prostate, bulbo-urethral glands

Question 4

dartos muscle

Answer 4

layer of smooth muscle in superficial fascia that wrinkles skin

Question 5

cremaster muscles

Answer 5

bands of skeletal muscle elevate testes

Question 6

Each testis is surrounded by two tunics

Answer 6

tunica vaginalis, tunica albuginea

Question 7

tunica vaginalis

Answer 7

outer layer derived from peritoneum

Question 8

tunica albuginea

Answer 8

inner layer forms fibrous capsule

Question 9

septa divide testis into ~250 ___, each containing one to four ____ _____. Site of ____ production.

Answer 9

lobules, seminiferous tubules, sperm

Question 10

Sperm is conveyed from seminiferous tubules to..

Answer 10

straight tubule -> rete testis -> efferent ductules -> epididymis

Question 11

pampiniform venous plexus

Answer 11

testicular veins arise from here; it surrounds each testibular artery; keeps testes cool

Question 12

spermatic cord

Answer 12

encloses nerve fibers, blood vessels, and lymphatics that supply testes

Question 13

cryptorchidism

Answer 13

most common risk factor of testicular cancer; nondescent of testes

Question 14

Accessory ducts

Answer 14

carry sperm from testes to body exterior: epididymis, ductus deferens, ejaculatory duct, urethra

Question 15

head

Answer 15

contains efferent ductules that empty into highly coiled duct of epididymis

Question 16

epididymis cell type

Answer 16

pseudostratified epithelial cells of duct mucosa contain microvilli; allows for absorption of excess testicular fluid and pass nutrients to stored sperm

Question 17

ductus deferens

Answer 17

passes through inguinal canal to pelvic cavity

Question 18

ampulla

Answer 18

ductus deferens expands to form this

Question 19

ejaculatory duct

Answer 19

ampulla joins duct of seminal vesicle to form this

Question 20

vasectomy

Answer 20

cutting and ligating ductus deferens

Question 21

three regions of urethra

Answer 21

prostatic urethra; intermediate part (membranous urethra); spongy urethra

Question 22

prostatic urethra

Answer 22

surrounded by prostate

Question 23

intermediate part of the urethra (membranous urethra)

Answer 23

in urogenital diaphragm

Question 24

spongy urethra

Answer 24

runs through penis; opens at external urethral orifice

Question 25

penis

Answer 25

male copulatory organ

Question 26

external genitalia

Answer 26

scrotum and penis

Question 27

penis consists of:

Answer 27

root and shaft that ends in glans penis; prepuce/foreskin (cuff of loose skin covering glans)

Question 28

erectile tissue

Answer 28

spongy network of connective tissue and smooth muscle with vascular spaces

Question 29

corpus spongiosum

Answer 29

surrounds urethra and expands to form glans and bulb of penis

Question 30

corpora cavernosa

Answer 30

paired dorsal erectile bodies

Question 31

crura

Answer 31

proximal ends of corpora cavernosa surrounded by ischiocavernosus muscle; anchors penis to pubic arch

Question 32

Male Perineum

Answer 32

diamond-shaped region between pubic symphysis, coccyx, and ischial tuberosities; suspends scrotum; contains root of penis and anus

Question 33

seminal glands (seminal vesicles)

Answer 33

contains smooth muscle that contracts during ejaculation; produces viscous alkaline seminal fluid; duct of glands joins ductus deferens to form ejaculatory duct

Question 34

prostate location & size

Answer 34

encircles urethra inferior to bladder; size of peach pit

Question 35

prostate

Answer 35

consists of smooth muscle that contracts during ejaculation; secretes milky, slightly acid fluid

Question 36

prostate contains...

Answer 36

citrate, enzymes, prostate-specific antigen (PSA)

Question 37

Bulbo-urethral glands

Answer 37

pea-sized glands inferior to prostate; produce thick, clear mucus during sexual arousal (lubricate glans penis & neutralize traces of acidic urine in urethra)

Question 38

benign prostatic hyperplasia

Answer 38

benign growth of stroma and glands of prostate constricts urethra making urination difficult leading to incomplete emptying

Question 39

semen

Answer 39

milky-white mixture of sperm and accessory gland secretions

Question 40

semen contains...

Answer 40

fructose for ATP production, protects and activates sperm, and facilitates sperm movement

Question 41

What does alkaline fluid do?

Answer 41

neutralizes acidity of male urethra and female vagina and enhances motility