Non-Testicular Structures of Male Reproductive Tract

Question 1

where is most of the volume of ejaculate derived from

Answer 1

the seminal vesicles and prostate gland

Question 2

what does the bulbourethral gland produce

Answer 2

a clear fluid that is released before ejaculation

Question 3

what is the function of the fluid produced by the bulbourethral gland

Answer 3

lubrication of the urethra

Question 4

what are the three segments of the urethra

Answer 4

prostatic, membranous and penile

Question 5

what are the seminal vesicles

Answer 5

a sac with a coimplete array of folds lined by pseudostratified columnar epithelium and smooth muscle surrounding the folds

Question 6

what do the ducts from the seminal vesicles join

Answer 6

the vas deferens

Question 7

what does the joining of the seminal vesicles and vas deferens form

Answer 7

the ejaculatory duct

Question 8

what does the ejaculatory duct pierce/empty into

Answer 8

the prostate gland and urethra

Question 9

what surround the prostate gland

Answer 9

a thin fibromuscular capsule

Question 10

what defines the capsule of the prostate

Answer 10

the fibromuscular septa that form spaces lined by a heterogeneous secretory epithelium

Question 11

what is the urethra lined by

Answer 11

transitional epithelium

Question 12

what does the urethra pass through within the prostate

Answer 12

fibrous stromal tissue at the centre of the gland

Question 13

what other than the urethra passes through the prostate

Answer 13

the ejaculatory ducts

Question 14

what does the prostate produce

Answer 14

a watery fluid

Question 15

what are the three zones of the prostate

Answer 15

the transitional, central and peripheral zones

Question 16

what is common in older men within the prostate

Answer 16

prostatic concecrations

Question 17

what is characteristic of the skin of the penis

Answer 17

it has a richly vascularised subcutaneous layer with a fibrocollagenous capsule

Question 18

what is the fibrocollagenous capsule of the penis known as

Answer 18

tunica albugina

Question 19

what are the 3 erectile tissue within the tunica albugina

Answer 19

two corpora cavernosa and the corpus spongiosum

Question 20

which erectile tissue does the urethra go through

Answer 20

the corpus spongiosum

Question 21

which erectile tissue contains more erectile tissue

Answer 21

cavernosa

Question 22

what is the penile urethra lined by

Answer 22

stratified columnar epithelium, chaning to non-keratinised stratified squamous near the tip of the penis

Question 23

what does the erectile tissue consist of

Answer 23

blood sinuses surrounded by fibromuscular tissue containing smooth muscle

Question 24

what are the blood sinuses of the penis supplied by

Answer 24

helicine arteries

Question 25

where are the veins draining the blood sinuses of the penis

Answer 25

just below the fibrocollagenous capsule

Question 26

what does parasympoathetic stimulation cause within the penis

Answer 26

dilation of the helicine arteries which causes the sinuses to become engored with blood (erection)
POINT

Question 27

what does sympathetic stimulation cause within the penis

Answer 27

ejaculation

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