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Gross III Final > Male Internal Genital Organs > Flashcards

Male Internal Genital Organs Flashcards

1
Q

What begins at the tail of epididymis in scrotum?

A

ductus deferens

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2
Q

does the ductus deferens have a thick muscular wall?

A

yes and very small luminal diameter

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3
Q

the ductus deferens ascends in _______ and passes thru ___________ then crosses over external iiac AV and ureters

A

spermatic cord; inguinal canal

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4
Q

Does the ductus deferens remain extraperitoneal?

A

yes in pelvis

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5
Q

What does the the ductus deferens join to form the ejaculatory duct?

A

duct of seminal vesicle

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6
Q

What forms the ejaculatory duct?

A

duct of seminal vesicle and ductus deferens

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7
Q

Where does the ductus deferens join the seminal vesicle relative to urinary bladder?

A

posteroinferior to urinary bladder fundus

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8
Q

What is the ampulla of the ductus deferens?

A

enlargement of ductus deferens just prior to formation of ejaculatory duct

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9
Q

Where is the ampulla of the ductus deferens located relative to seminal vesicle

A

medial to ipsilateral seminal vesicle

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10
Q

Where is spermatozoa located?

A

in ampulla, ductus deferens and epididymis

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11
Q

What arteries supply the ductus deferens?

A

from either superior or inferior vesical a

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12
Q

What is the sympathetic innervation to the ductus deferens?

A

lumbar splanchnic n and hypogastric plexuses

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13
Q

What happens as a result of symapthetic innervation to ductus deferens?

A

faciliate rapid contraction for expulsion of sperm during emission

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14
Q

what is the parasympathetic innervation to the ductus deferens?

A

via pelvic splanchnic n and hypogastic plexuses

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15
Q

function of parasympathetic to ductus deferens?

A

uncertain

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16
Q

Where are the seminal vesicles found?

A

between fundus of urinary bladder and rectum

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17
Q

where are the seminal vesicles in relation to the prostate?

A

superior to prostate, obiquely placed

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18
Q

What covers the seminal vesicles superiorly?

A

parietal peritoneum

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19
Q

what separates the seminal vesicles from the rectum?

A

by inferior part of rectovesical pouch

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20
Q

Inferiorly the seminal vesicles are associated with ________

A

rectum

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21
Q

can you palpate the seminal vesicles?

A

yes, enlarged ones are palpable during digital rectal examination

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22
Q

Ductus deferens passes by seminal vesicle on _____ side

A

medial

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23
Q

What does the seminal vesicles secrete?

A

thick, alkaline fluid which mixes with sperm to form semen

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24
Q

the fluid from the seminal vesicles accounts for what % of semen volume?

A

80%

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25
Q

Why is fructose in the semen produced by the seminal vesicles?

A

to provide as an energy source for spermatozoa

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26
Q

how are secretions added from the seminal vesicles?

A

by muscular contraction in wall of gland

27
Q

What is the vascular supply to seminal vesicles?

A

inferior vesical AV

28
Q

What supplies sympathetic innervation to the seminal vesicles?

A

lumbar splanchnic N and hypogastric plexuses

29
Q

What is the function of sympathetic innervation to the seminal vesicles?

A

produces contraction in seminal vesicles during emission/ ejects secretions

30
Q

where does the ejaculatory duct start?

A

begins at union of ductus deferens with duct from seminal vesicle

31
Q

What is the length of the ejaculatory duct?

A

2.5cm long

32
Q

How does the ejaculatory duct pass relative to the posterior prostate?

A

anteroinferiorly thru posterior prostate

33
Q

Where do the ejaculatory duct converge and open?

A

on seminal colliculus, just inside opening of prostatic utricle

34
Q

What is the vascular supply to the ejaculatory duct?

A

inferior vesical a

35
Q

what is the innervation of ejaculatory duct?

A

autonomics via inferior hypogastric plexuses

36
Q

What is the largest gland of male reproductive system?

A

prostate, 3 cm walnut sized

37
Q

What fraction of prostate is glandular and fibromuscular?

A

2/3- glandular

1/3- fibromuscular

38
Q

What does the prostate surround?

A

prostatic urethra

39
Q

What surrounds the prostate?

A

dense fibrous capsule

40
Q

What is the base of the prostate adjacent to?

A

neck of urinary bladder

41
Q

What is the apex of the prostate adjacent to?

A

deep perineal muscles and external urethral sphincter

42
Q

What is the prostate associated with anteriorly?

A

retropubic space

43
Q

What is the prostate associated with posteriorly?

A

rectum

44
Q

Which prostate lobe is basically a superior continuation of external urethral sphincter?

A

anterior lobe

45
Q

What lobe of prostate is a fibromuscular section located anterior to urethra?

A

anterior lobe

46
Q

Does the anterior lobe contain glandular tissue?

A

contains little or no glandular tissue

47
Q

which lobes of the prostate are on either of prostatic urethra?

A

lateral lobes

48
Q

which prostate lobe contains majority of prostatic glandular tissue?

A

lateral lobes

49
Q

Which prostatic lobe is most prone to metastatic transformation?

A

lateral lobes

50
Q

Where is the posterior lobe of the prostate located?

A

posterior to prostatic urethra and inferior to ejaculatory ducts

51
Q

Can you palpate the posterior lobe?

A

yes readily palpable by digital rectal exam

52
Q

Which lobe is located between prostatic urethra and ejactulatory ducts?

A

middle lobe of prostate

53
Q

Where is the middle lobe relative to the urinary bladder?

A

immediately inferior to neck of urinary baldder, located between uvula of urinary bladder

54
Q

Which prostatic lobe is most prone to benign hypertrophy?

A

middle lobe

55
Q

What opens into prostatic sinuses on either side of seminal colliculus?

A

prostatic ducts

56
Q

Are there a lot of prostatic ducts?

A

yes 20-30 that open into prostatic sinuses

57
Q

What % of semen volume comes from the prostate?

A

20%

58
Q

describe the prostatic secretions?

A

thin, milky fluid with enzymatic activity

59
Q

Where does the prostate a branch from?

A

inferior vesical a

60
Q

What is the vascular supply to the prostate?

A

prostatic a

61
Q

What is the sympathetic innervation of prostate?

A

lumbar splanchnic n and inferior hypogastric plexus

62
Q

What is the function of sympathetic innervation to prostate?

A

produces contraction in prostate during emission - ejects secretions

63
Q

What is the parasympathetic innervation of prostate?

A

pelvic splanchnic nerves S2-S4

64
Q

what is the function of sympathetic innervation to prostate?

A

unclear, innervate erectile bodies of penis and responsible for penile erection

Gross III Final (15 decks)

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