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A&P 2 > Male Reproductive System > Flashcards

Male Reproductive System Flashcards

1
Q

testes

A

sperm-producing male gonads that lie within the scrotum

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2
Q

Sperm is delivered to body through system of ducts:

A

epididymis, ductus deferens, ejaculatory duct, urethra

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3
Q

accessory sex glands

A

seminal glands, prostate, bulbo-urethral glands

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4
Q

dartos muscle

A

layer of smooth muscle in superficial fascia that wrinkles skin

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5
Q

cremaster muscles

A

bands of skeletal muscle elevate testes

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6
Q

Each testis is surrounded by two tunics

A

tunica vaginalis, tunica albuginea

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7
Q

tunica vaginalis

A

outer layer derived from peritoneum

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8
Q

tunica albuginea

A

inner layer forms fibrous capsule

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9
Q

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

A

lobules, seminiferous tubules, sperm

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10
Q

Sperm is conveyed from seminiferous tubules to..

A

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

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11
Q

pampiniform venous plexus

A

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

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12
Q

spermatic cord

A

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

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13
Q

cryptorchidism

A

most common risk factor of testicular cancer; nondescent of testes

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14
Q

Accessory ducts

A

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

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15
Q

head

A

contains efferent ductules that empty into highly coiled duct of epididymis

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16
Q

epididymis cell type

A

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

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17
Q

ductus deferens

A

passes through inguinal canal to pelvic cavity

18
Q

ampulla

A

ductus deferens expands to form this

19
Q

ejaculatory duct

A

ampulla joins duct of seminal vesicle to form this

20
Q

vasectomy

A

cutting and ligating ductus deferens

21
Q

three regions of urethra

A

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

22
Q

prostatic urethra

A

surrounded by prostate

23
Q

intermediate part of the urethra (membranous urethra)

A

in urogenital diaphragm

24
Q

spongy urethra

A

runs through penis; opens at external urethral orifice

25
Q

penis

A

male copulatory organ

26
Q

external genitalia

A

scrotum and penis

27
Q

penis consists of:

A

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

28
Q

erectile tissue

A

spongy network of connective tissue and smooth muscle with vascular spaces

29
Q

corpus spongiosum

A

surrounds urethra and expands to form glans and bulb of penis

30
Q

corpora cavernosa

A

paired dorsal erectile bodies

31
Q

crura

A

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

32
Q

Male Perineum

A

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

33
Q

seminal glands (seminal vesicles)

A

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

34
Q

prostate location & size

A

encircles urethra inferior to bladder; size of peach pit

35
Q

prostate

A

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

36
Q

prostate contains…

A

citrate, enzymes, prostate-specific antigen (PSA)

37
Q

Bulbo-urethral glands

A

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

38
Q

benign prostatic hyperplasia

A

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

39
Q

semen

A

milky-white mixture of sperm and accessory gland secretions

40
Q

semen contains…

A

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

41
Q

What does alkaline fluid do?

A

neutralizes acidity of male urethra and female vagina and enhances motility

42
Q
A

A&P 2 (20 decks)

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