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HS Exam 2 > Male Reproductive Tract > Flashcards

Male Reproductive Tract Flashcards

1
Q

what are the 2 ligaments supporting the penis and their functions

A

fundiform- hold structures to anterior wall

suspensory ligament of penis- from pubic symphysis to deep fascia of penis

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2
Q

what is the blood supply of the penis

A

dorsal artery of penis

external pudenal

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3
Q

what is the innervation of the penis

A

dorsal nerve of penis

ilioinguinal

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4
Q

describe the sections of the urethra

A

intramural- continuation of bladder neck
prostatic- through prostate
membranous- through perineum membrane and muscles
penile/spongy- through corpora spongiosum

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5
Q

location of external urethral sphinchter

A

at the membranous urethra

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6
Q

what is the navicular fossa

A

end of spongy urethra

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7
Q

structures of the prostatic urethra

A 
urethral crest
esminal colliculus
prostatic utricle
openings of ejaculatory ducts
prostatic sinuses
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8
Q

urethral crest

A

ridge on posterior wall of prostatic urethra

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9
Q

seminal colliculus

A

swelling in urethral crest

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10
Q

holes in seminal colliculus

A

prostatic utricle
opening of ejaculatory ducts
prostatic sinuses

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11
Q

what is prostatic utricle

A

blind ended sac that is remnant of female organs

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12
Q

what are ejaculatory ducts for

A

sperm and seminal vesicle secretions enter urethra

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13
Q

prostatic sinuses

A

openings for prostatic secretions, located around the seminal colliculus

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14
Q

where are the bulbourethral glands and what are they for

A

located in the deep perineal space below the prostate
ducts open into urethral bulb
release preejaculatory fluid

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15
Q

what structures are palpable during a rectal exam

A

prostate

bulbourethral gland and seminal vesicles if enlarged

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16
Q

prostate feels and meaning

A

normal- soft, pliable
BPH- hard, pliable
cancer- hard

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17
Q

what is denovillers fascia

A

retrovesicular fascia
allows rectum and prostate to slide over each other- lack of sliding = pathology
used as a landmark for surgical approach

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18
Q

glands of male reproduction

A

seminal vesicles
prostate
bulbourethral glands

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19
Q

describe BPH

A

benign prostatic hypertrophy
enlargement of prostate resulting in obstruction of urethra
can be surgically fixed by removing the obstruction or treated with medication

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20
Q

where are the seminal vesicals

A

behind the bladder, superior to prostate partly covered by peritneum

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21
Q

role of seminal vesicles

A

produces a basic secretion with lots of fructose that is used as food for sperm

22
Q

how does seminal vesicle secretion enter urethra

A

joins with the ductus deferns

23
Q

location of prostate

A

at the neck of the bladder

urethra goes though it

24
Q

role of prostate

A

secretion of enzymes, acidic phosphates, and citric acid

25
Q

how does prostate secretion enter urethra

A

prostatic sinuses

26
Q

what is significant about the prostatic venous plexus

A

drains into the internal iliac vein

major route for spread of infection

27
Q

location of bulbourethral glands

A

in deep perineal space

open into urethra inferior to prostate

28
Q

purpose of bulbourethral glands

A

secrete preejaculatory fluid to ready the urethra for semen

29
Q

erectile bodies of the penis

A

2 corpora cavernosa

corpus spongiosum

30
Q

layers of penis

A

skin
dartos fascia
deep fascia

31
Q

what layer contains the superficial dorsal vein of the penis

A

dartos fascia

32
Q

what layer contains the deep dorsal vein, dorsal artery, and dorsal nerve of the penis

A

bucks fascia

33
Q

where is the tunica albuginea

A

surrounds each corpus cavernosum and the corpora spongiosum (thicker around corpus cavernosum)

34
Q

where is the deep artery of the penis

A

in the center of the corpus cavernosum

35
Q

what artery is responsible for erection

A

deep artery of the penis via helcine arteries

36
Q

where are sperm stored until ejaculation

A

tail of epididymis

37
Q

where is the ductus deferns

A

lateral to the inferior epigastric artery and anterior to the external iliac vessels and the ureter

38
Q

what is responsible for erection

A

parasympathetic stimulation via pelvic splanchnic nerves and filling of the hellicine arteries that are branches of the deep artery of the penis

39
Q

what are the 2 parts of erection and how are they controlled

A

emission- sympathetic via lumbar splanchnics

ejaculation- somatic reflex via pudendal nerve

40
Q

what happens during emission

A

contraction of the ductus and gland smooth muscles

41
Q

what happens during ejaculation

A

contraction of bulbospongiosus muscle as a reflex to the presence of semen in the urethra

42
Q

innervation path for erection

A

pelvic splanchnic–> inferior hypogastric plexus–> prostatic plexus–> cavernous nerves

43
Q

innervation path for emission

A

lumbar splanchnics–> superior hypogastric plexus–> hypogastric nerves–> inferior hypogastric plexus–>vessels

44
Q

path of pudendal nerve

A

exits pelvic cavity through greater sciatic foramen, around ischial spine, enters through lesser sciatic foramen into pudendal canal in obturator fascia

45
Q

branches of pudendal nerve and locations

A

inferior rectal- to anal canal
dorsal nerve of penis/clitoris- deep perineal pouch (cutaneous innervation of penis/clitoris)
perineal nerve

46
Q

branches of perineal nerve

A

deep branch to muscles- superficial perineal pouch (ishiocavernosus and bulbospongiosus m)
posterior labial/scrotal- superficial fascia (cutaneous innervation of labia/scrotum)

47
Q

source of internal pudendal artery

A

branch from internal iliac artery

48
Q

path of internal pudendal artery

A

exits pelvic cavity through greater sciatic foramen, goes around the ishial spine and enters perineum through lesser sciatic foramen and the pudendal canal

49
Q

branches, locations, and endings of internal pudendal artery

A

inferior rectal- anal canal
perineal- continues and branches
continues and gives off 3 branches in the deep perineal space

50
Q

branches of the internal pudendal artery in the deep perineal space

A

artery to bulb- supplies corpora spongiosum
deep artery to penis/clitoris- corpora cavernosum
dorsal artery of penis/clitoris- skina nd dartos fascia of penis/clitoris

51
Q

branches of the perineal artery

A

deep branch to muscles- supplies bulbospongiosus and ishiocavernosus muscles
posteiror labial and scrotal- skin of labia and scrotum

HS Exam 2 (24 decks)

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