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Gross III > Part III: Male Internal Genital Organs Pg 100-102 > Flashcards

Part III: Male Internal Genital Organs Pg 100-102 Flashcards

1
Q

Where does the ductus deferens begin?

A

The tail of the epididymus

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2
Q

The ductus deferens joins the seminal vesicle to form what?

A

Ejaculatory duct

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3
Q

The enlargement of ductus deferens just prior to formation of ejaculatory duct

A

Ampulla

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4
Q

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

A

Medial to ipsilateral seminal vesicle

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5
Q

What is the arterial supply to ductus deferens?

A

Either superior vesical A or inferior vesical A

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6
Q

What is the venous drainage of the pelvic portion of the ductus deferens?

A

Prostatic venous plexus

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7
Q

What is the lymphatic drainage of the ductus deferens?

A

External iliac lymph nodes

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8
Q

Sympathetic innervation of the ductus deferens is via:

A

Lumbar splanchnic N and hypogastric plexus

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9
Q

What is the function of sympathetic innervation to the ductus deferens?

A

Facilitate rapid contraction for expulsion of sperm during emission

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10
Q

Parasympathetic innervation of the ductus deferens is via:

A

Pelvic splanchnic N and hypogastric plexuses

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11
Q

What is the function of parasympathetic innervation to the ductus deferens?

A

Function is uncertain

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12
Q

The obliquely placed glands located superior to prostate and between fundus or urinary bladder and rectum

A

Seminal vesicle

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13
Q

The seminal vesicles are covered superiorly by:

A

Parietal peritoneum

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14
Q

The seminal vesicle is separated from rectum by:

A

Inferior part of rectovesical pouch

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15
Q

The seminal vesicles are closely associated with _____ .

A

The rectum

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16
Q

What does the seminal vesicle secrete?

A

A thick, alkaline fluid which mixes with sperm to from semen

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17
Q

How are secretions from the seminal vesicles added the the ejaculatory duct?

A

By muscular contraction in the wall of the gland

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18
Q

The secretions of the seminal vesicles account for what percentage of semen volume?

A

80%

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19
Q

What is the vascular supply to the seminal vesicles?

A

Inferior vesical AV

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20
Q

Lymphatic drainage of the seminal vesicles is to:

A

Internal iliac lymph nodes

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21
Q

sympathetic innervation of the seminal vesicles is via:

A

Lumbar splanchnic N and hypogastric plexuses

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22
Q

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

A

Produces contraction in seminal vesicle during emission

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23
Q

Parasympathetic innervation of the seminal vesicle is via:

A

Pelvic splanchnic N and hypogastric plexuses

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24
Q

What is the function of parasympathetic innervation of the seminal vesicles?

A

Function uncertain

25
Q

Where does the ejaculatory duct begin?

A

At the union of ductus deferens with seminal vesicle

26
Q

The ejaculatory ducts converge and open on _____ just inside the opening of prostatic utricle.

A

Seminal colliculus

27
Q

What is the arterial supply to the ejaculatory duct?

A

Inferior vesical A

28
Q

What is the venous drainage of the ejaculatory duct?

A

Via prostatic and vesical venous plexuses

29
Q

Lymphatic drainage of the ejaculatory duct is via:

A

Internal iliac lymph nodes

30
Q

Autonomic innervation of ejaculatory duct is via:

A

Inferior hypogastric plexus

31
Q

What is the largest accessory gland of the male reproductive system?

A

Prostate

32
Q

2/3 of the prostate gland is _______ and 1/3 is _______.

A

Glandular

Fibromuscular

33
Q

What part of the urethra does the prostate gland surround?

A

Prostatic urethra

34
Q

The base of the prostate is adjacent to:

A

The neck of the urinary bladder

35
Q

The apex of the prostate is adjacent to:

A

Deep perineal muscles and external urethral sphincter

36
Q

Anteriorly the prostate gland is associated with ______ and posteriorly with ______.

A
  • retropubic space

- rectum

37
Q

The fibromuscular section of the prostate that is located anterior to the urethra and contains little or no glandular tissue

A

Anterior lobe

38
Q

The lobes of the prostate gland that are located on either side of prostatic urethra and contain the majority of prostatic glandular tissue

A

Lateral lobes

39
Q

The lobe of the prostate that is located posterior to prostatic urethra and inferior to ejaculatory ducts

A

Posterior lobe

40
Q

Which part of the prostate is readily palpable vis digital rectal exam?

A

Posterior lobe

41
Q

Other than the posterior lobe of the prostate, what other male structure can be palpate on digital rectal examination?

A

Seminal vesicles, especially when enlarged

42
Q

The lobe of the prostate that is located between the prostatic urethra and ejaculatory ducts, immediately inferior to the neck of the urinary bladder

A

Middle lobe

43
Q

What lobe of the prostate is most prone to metastatic transformation? Why?

A

Lateral lobes

Because the prostatic venous plexus communicates with vesical venous plexus and internal vertebral venous plexus which allows metastasis to spread to vertebral column

44
Q

What lobe of the prostate is most prone to benign hypertrophy?

A

Middle (median) lobe

45
Q

20-30 ducts which open into prostatic sinuses on either side of seminal colliculus

A

Prostatic ducts

46
Q

Describe the prostatic secretions?

A
  • Thin, milky fluid with enzymatic activity

- Account for about 20% of semen volume

47
Q

What is the arterial supply to the prostate?

A

Inferior vesical A

48
Q

What is the venous drainage of the prostate?

A

Drainage is to prostatic venous plexus and then internal iliac V

49
Q

Lymphatic drainage of the prostate is via:

A

Internal iliac and sacral lymph nodes

50
Q

Sympathetic innervation of the prostate is via:

A

Lumbar splanchnic N and inferior hypogastric plexus

51
Q

What is the function of sympathetic innervation to the prostate?

A

Produces contraction in prostate during emission (ejects secretions)

52
Q

Parasympathetic innervation to the prostate is via:

A

Pelvic splanchnic nerves (S2-S4)

53
Q

What is the function of parasympathetic innervation to the prostate?

A

Function is unclear although the same fibers innervate erectile bodies of penis and are responsible for penile erection.

54
Q

Bulbourethral glands are also known as:

A

Cowper’s glands

55
Q

Small, pea-sized glands located posterolateral to membranous urethra

A

Bulbourethral glands

56
Q

Where do the ducts of the bulbourethral gland open into?

A

Ducts open into proximal part of spongy urethra in bulb of penis

57
Q

What kind of secretion does the bulbourethral gland produce?

A

viscous secretion that enters spongy urethra during sexual arousal

58
Q

The bulbourethral glands in males are analogous to ________ in females.

A

greater vestibular glands

Gross III (20 decks)

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