Male Internal Genital Organs

Question 1

What begins at the tail of epididymis in scrotum?

Answer 1

ductus deferens

Question 2

does the ductus deferens have a thick muscular wall?

Answer 2

yes and very small luminal diameter

Question 3

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

Answer 3

spermatic cord; inguinal canal

Question 4

Does the ductus deferens remain extraperitoneal?

Answer 4

yes in pelvis

Question 5

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

Answer 5

duct of seminal vesicle

Question 6

What forms the ejaculatory duct?

Answer 6

duct of seminal vesicle and ductus deferens

Question 7

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

Answer 7

posteroinferior to urinary bladder fundus

Question 8

What is the ampulla of the ductus deferens?

Answer 8

enlargement of ductus deferens just prior to formation of ejaculatory duct

Question 9

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

Answer 9

medial to ipsilateral seminal vesicle

Question 10

Where is spermatozoa located?

Answer 10

in ampulla, ductus deferens and epididymis

Question 11

What arteries supply the ductus deferens?

Answer 11

from either superior or inferior vesical a

Question 12

What is the sympathetic innervation to the ductus deferens?

Answer 12

lumbar splanchnic n and hypogastric plexuses

Question 13

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

Answer 13

faciliate rapid contraction for expulsion of sperm during emission

Question 14

what is the parasympathetic innervation to the ductus deferens?

Answer 14

via pelvic splanchnic n and hypogastic plexuses

Question 15

function of parasympathetic to ductus deferens?

Answer 15

uncertain

Question 16

Where are the seminal vesicles found?

Answer 16

between fundus of urinary bladder and rectum

Question 17

where are the seminal vesicles in relation to the prostate?

Answer 17

superior to prostate, obiquely placed

Question 18

What covers the seminal vesicles superiorly?

Answer 18

parietal peritoneum

Question 19

what separates the seminal vesicles from the rectum?

Answer 19

by inferior part of rectovesical pouch

Question 20

Inferiorly the seminal vesicles are associated with ________

Answer 20

rectum

Question 21

can you palpate the seminal vesicles?

Answer 21

yes, enlarged ones are palpable during digital rectal examination

Question 22

Ductus deferens passes by seminal vesicle on _____ side

Answer 22

medial

Question 23

What does the seminal vesicles secrete?

Answer 23

thick, alkaline fluid which mixes with sperm to form semen

Question 24

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

Answer 24

80%

Question 25

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

Answer 25

to provide as an energy source for spermatozoa

Question 26

how are secretions added from the seminal vesicles?

Answer 26

by muscular contraction in wall of gland

Question 27

What is the vascular supply to seminal vesicles?

Answer 27

inferior vesical AV

Question 28

What supplies sympathetic innervation to the seminal vesicles?

Answer 28

lumbar splanchnic N and hypogastric plexuses

Question 29

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

Answer 29

produces contraction in seminal vesicles during emission/ ejects secretions

Question 30

where does the ejaculatory duct start?

Answer 30

begins at union of ductus deferens with duct from seminal vesicle

Question 31

What is the length of the ejaculatory duct?

Answer 31

2.5cm long

Question 32

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

Answer 32

anteroinferiorly thru posterior prostate

Question 33

Where do the ejaculatory duct converge and open?

Answer 33

on seminal colliculus, just inside opening of prostatic utricle

Question 34

What is the vascular supply to the ejaculatory duct?

Answer 34

inferior vesical a

Question 35

what is the innervation of ejaculatory duct?

Answer 35

autonomics via inferior hypogastric plexuses

Question 36

What is the largest gland of male reproductive system?

Answer 36

prostate, 3 cm walnut sized

Question 37

What fraction of prostate is glandular and fibromuscular?

Answer 37

2/3- glandular | 1/3- fibromuscular

Question 38

What does the prostate surround?

Answer 38

prostatic urethra

Question 39

What surrounds the prostate?

Answer 39

dense fibrous capsule

Question 40

What is the base of the prostate adjacent to?

Answer 40

neck of urinary bladder

Question 41

What is the apex of the prostate adjacent to?

Answer 41

deep perineal muscles and external urethral sphincter

Question 42

What is the prostate associated with anteriorly?

Answer 42

retropubic space

Question 43

What is the prostate associated with posteriorly?

Answer 43

rectum

Question 44

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

Answer 44

anterior lobe

Question 45

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

Answer 45

anterior lobe

Question 46

Does the anterior lobe contain glandular tissue?

Answer 46

contains little or no glandular tissue

Question 47

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

Answer 47

lateral lobes

Question 48

which prostate lobe contains majority of prostatic glandular tissue?

Answer 48

lateral lobes

Question 49

Which prostatic lobe is most prone to metastatic transformation?

Answer 49

lateral lobes

Question 50

Where is the posterior lobe of the prostate located?

Answer 50

posterior to prostatic urethra and inferior to ejaculatory ducts

Question 51

Can you palpate the posterior lobe?

Answer 51

yes readily palpable by digital rectal exam

Question 52

Which lobe is located between prostatic urethra and ejactulatory ducts?

Answer 52

middle lobe of prostate

Question 53

Where is the middle lobe relative to the urinary bladder?

Answer 53

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

Question 54

Which prostatic lobe is most prone to benign hypertrophy?

Answer 54

middle lobe

Question 55

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

Answer 55

prostatic ducts

Question 56

Are there a lot of prostatic ducts?

Answer 56

yes 20-30 that open into prostatic sinuses

Question 57

What % of semen volume comes from the prostate?

Answer 57

20%

Question 58

describe the prostatic secretions?

Answer 58

thin, milky fluid with enzymatic activity

Question 59

Where does the prostate a branch from?

Answer 59

inferior vesical a

Question 60

What is the vascular supply to the prostate?

Answer 60

prostatic a

Question 61

What is the sympathetic innervation of prostate?

Answer 61

lumbar splanchnic n and inferior hypogastric plexus

Question 62

What is the function of sympathetic innervation to prostate?

Answer 62

produces contraction in prostate during emission - ejects secretions

Question 63

What is the parasympathetic innervation of prostate?

Answer 63

pelvic splanchnic nerves S2-S4

Question 64

what is the function of sympathetic innervation to prostate?

Answer 64

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