28 B (Male Reproductive System) Flashcards

1
Q

what does the scrotum do?

A

provides the testes with a cooler environment than body temperature

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1
Q

skin-covered sac

A

scrotum

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2
Q

the scrotum is homologous to what female structure?

A

the labia majora

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3
Q

this structure consists of muscle, vasculature & nervous tissue

A

spermatic cord

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4
Q

where does the spermatic cord originate?

A

in the inguinal canal

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5
Q

each testes is

A

an oval organ within the scrotum

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6
Q

what does the testes produce?

A

sperm & testosterone

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7
Q

each testes is subdivided into

A

about 250 lobules

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8
Q

each lobule of the testes contains up to

A

4 convoluted seminiferous tubules

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9
Q

development of sperm

A

spermatogenesis

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10
Q

where does spermatogenesis occur?

A

in the seminiferous tubules of testes

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11
Q

what structures make up sperm?

A

(1) head
(2) acrosome
(3) mitochondria
(4) flagellum

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12
Q

list the ducts in the male reproductive tract, from the testis through the penis

A

(1) epididymis
(2) ductus deferens
(3) ejaculatory duct
(4) urethra

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13
Q

this duct is situated on the posterosuperior surface of the testes

A

epididymis

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14
Q

what is the function of the epididmyis?

A

stores sperm cells & assists in their maturation

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15
Q

sperm leaving the epididymis will enter what ducts?

A

the thick-walled ductus deferens

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16
Q

the ductus deferens travels within the ______

A

spermatic cord

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17
Q

the ductus deferens will enter the pelvic cavity through the ______

A

inguinal canal

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18
Q

how is the ejaculatory duct formed?

A

the ductus deferens unites with the proximal portion of the seminal vesicle

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19
Q

what is the function of the ejaculatory duct?

A

conducts sperm & seminal vesicle secretions to the prostatic urethra

20
Q

what is the function of the male urethra?

A

transports semen from both ejaculatory ducts to the outside of the body

21
Q

list the subregions of the male urethra

A

(1) prostatic
(2) membranous
(3) spongy

22
Q

3 glands secrete fluids to mix with sperm to create what?

A

seminal fluid

23
Q

what is the purpose of seminal fluid?

A

nourishment of the sperm & neutralizes the acidity of the vagina

24
Q

list the three accessory glands associated with the male reproductive system

A

(1) seminal vesicles
(2) prostate gland
(3) bulbourethral glands

25
Q

this gland is an elongated hollow organ

A

seminal vesicles

26
Q

where are the seminal vesicles located?

A

on the posterior surface of the urinary bladder, lateral to the ampulla of the ductus deferens

27
Q

what is the function of the seminal vesicles

A

they secrete a viscous, whitish-yellow, alkaline fluid containing fructose & prostaglandins

28
Q

this gland secretes directly into the prostatic urethra

A

prostate gland

29
Q

where is the prostate gland located?

A

immediately inferior to the urinary bladder

30
Q

when released, semen is called

A

ejaculate

31
Q

what is semen made up of?

A

seminal fluid & sperm

32
Q

what does external genitalia formed from?

A

penis & scrotum

33
Q

elongated portion of the penis

A

body/shaft

34
Q

tip of the penis

A

glans

35
Q

what does the glans surround?

A

the external urethral orifice

36
Q

the foreskin of an uncircumcised penis

A

prepuce

37
Q

what does the shaft of the penis contain?

A

3 parallel cylindrical erectile bodies

38
Q

list the erectile bodies of the shaft

A

(1) paired corpora cavernosa
(2) single corpus spongiosum

39
Q

this body is ventral & along the midline

A

corpus spongiosum

40
Q

these bodies are located dorsolaterally

A

corpora cavernosa

41
Q

what part of the corpus spongiosum continues within the glans?

A

the distal end

42
Q

what does the corpus spongiosum surround?

A

the spongy urethra

43
Q

what is the function of the bulbourethral gland?

A

secretes mucin for lubrication

44
Q

this condition is the result of the growth of the prostate constricting the urethra

A

benign prostatic hyperplastic (BPH)

45
Q

what can happen as a result of BPH?

A

urine flow is affected

46
Q

this condition is the result of soft tissue bulging through the opening of the inguinal canal

A

inguinal hernia

47
Q

what is the function of the body of the penis?

A

contains erectile tissue that simulates sexual arousal & climax

48
Q

what is the function of the glans of the penis?

A

contains erectile tissue that simulates sexual arousal & climax