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Viscera Lecture > Pelvis II > Flashcards

Pelvis II Flashcards

1
Q

largest nerve in the body, exits through greater sciatic foramen

A

sciatic n L4-S3

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2
Q

the sciatic nerves is the combination of what two nerves

A

common peroneal (fibular) and tibial nerves

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3
Q

nerve that runs with internal pudendal artery, exits through greater sciatic foramen, passes over the sacrospinous ligament into the lesser sciatic foramen to the ischiorectal fossa

A

pudendal n S2-4 (ventral rami)

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4
Q

the pudendal nerve when passing over the sacrospinous ligament into the lesser sciatic foramen passes though ____ to the ischiorectal fossa

A

alcocks canal

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5
Q

what are the 3 branches off the pudendal nerve

A
  1. perineal n
  2. dorsal nerve to penis or clitoris
  3. inferior rectal n
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6
Q

supplies the skin and muscles of perineum (between anus and genitalia)

A

perineal n

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7
Q

supplies sensory to external genitalia

A

dorsal n to penis or clitoris

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8
Q

external anal sphincter n

A

inferior rectal n

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9
Q

supplies gluteus medius and minimus muscles

A

superior gluteal n L4-S1

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10
Q

supplies gluteus maximus

A

inferior gluteal n L5-S2

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11
Q

supplies obturator internus and gemellus superior

A

n to obturator internus L5-S2

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12
Q

supplies piriformis

A

n to piriformis S1-2

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13
Q

supplies skin of buttocks, medial and posterior thigh

A

posterior femoral cutaneous n S1-3

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14
Q

motor to the adductors; sensory to inferior, medial thigh

A

obturator n L2-4

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15
Q

small network from S4-5 that lies on the pelvic surface of the coccyx to supply the coccygeus, part of levator ani, sacrococcygeal joint, and skin over the coccygeal area

A

coccygeal plexus

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16
Q

continue from the lumbar sympathetic trunks and joins to form the ganglion impar anterior to the coccyx (sympathetics to lower limbs)

A

sacral sympathetic trunks

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17
Q

supplies parasympathetics to pelvic viscera via the inferior hypogastric and pelvic plexus

A

pelvic splanchnic nerves S2-4

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18
Q

nerves to levator ani and coccygeus cord segments

A

S3-4

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19
Q

lies just inferior to the aortic bifurcation and descends into the pelvis along the anterior sacrum as they become right and left hypogastric nerves

A

superior hypogastric plexus

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20
Q

contain both p/s and sym fibers; supplies pelvic viscera

A

inferior hypogastric plexus

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21
Q

IHP supplies what in males

A

prostate, seminal vesicles, inferolateral bladder

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22
Q

IHP supplies what in females

A

cervix of uterus, lateral fornices of vagina

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23
Q

gives branches to inferior epigastric artery and deep circumflex iliac artery

A

external iliac artery

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24
Q

main branch which forms the lateral umbilical fold, anastomoses with the superior epigastric artery

A

inferior epigastric artery

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25
Q

anastomoses with iliolumbar artery

A

deep circumflex artery

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26
Q

artery that divides into an anterior and posterior division

A

internal iliac artery

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27
Q

branches off posterior division; ascends anterior to SI joints to supply iliopsoas and cauda equina

A

iliolumbar artery

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28
Q

branches off posterior division; travels down the anteromedial aspect of piriformis where it gives off branches that travel through the sacral foramina to supply bone, erector spinae, piriformis, and overlying skin

A

lateral sacral artery

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29
Q

branch off posterior division; exits pelvis via greater sciatic foramen, found between the lumbosacral trunk and S1 ventral ramus

A

superior gluteal artery

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30
Q

branch off anterior division; runs anteroinferiorly between urinary bladder and pelvis to give off _______

A

umbilical artery

superior vesical arteries

31
Q

supply the superior bladder and lower ureter, continuation dies then becomes medial umbilical ligament

A

superior vesical arteries

32
Q

branch off anterior division; runs anteroinferiorly on the obturator fascia between the nerve and vein and exits the pelvis via obturator canal to supply medial thigh

A

obturator artery

33
Q

what is the variability when it comes to the obturator artery

A

obturator artery exits external iliac then wraps around pubic ramus to obturator canal (pelvis fracture can cause harm)

34
Q

only seen in males; supplies the inferior bladder, inferior part of ureters, seminal vesicles, and prostate

A

inferior vesical artery

35
Q

only seen in females; passes anterior and superior to the ureter (homologue of artery to vas deferens)

A

uterine artery

36
Q

only seen in females; homologue of inferior vesical artery runs inferior to the ureter

A

vaginal artery

37
Q

passes inferolaterally, anterior to the piriformis and sacral plexus

A

internal pudendal artery

38
Q

supplies inferior rectum, prostate, vagina, and seminal vesicles

A

middle rectal artery

39
Q

found between S2 and S3 or splitting S2 nerve root

A

inferior gluteal artery

40
Q

drainage of venous blood from the pelvic region can either be ___ or ___

A

systemic or portal

41
Q

lateral sacral veins eventually drain into the _________

A

internal vertebral venous plexus (batson’s channels)

42
Q

how does prostate cancer get to the spine

A

lateral sacral veins draining into internal vertebral venous plexus

43
Q

structure that carries sperm; ends by first enlarging to form an ampulla, then narrows to join the ducts of the seminal vesicles to from the _____

A

ductus deferens

ejaculatory ducts (intraprostatic structure)

44
Q

secretes fructose and an alkaline substance that mixes with the sperm as they enter the ejaculatory ducts

A

seminal vesicles

45
Q

union between the duct of the seminal vesicle and the vas deferens

A

ejaculatory ducts

46
Q

dense walnut shaped gland located inferior to the bladder

A

prostate (3cm)

47
Q

what does the prostate secrete

A

prostate specific antigen, citric acid, and fibrinolysin

48
Q

pea sized glands that lie posterolaterally to the membranous urethra and have ducts that empty their musk like secretions into this part of the urethra

A

bulbourethral glands

49
Q

what prevents an erected penis from explosion

A

deep fascia

50
Q

what are the two “eyes” of the monkey face that perfuse the penis

A

corpus cavernosum

51
Q

what is the urethra sitting in within the penis

A

corpus spongiosum

52
Q

musculomembranous tube that extends from the vestibule to where it surrounds the cervix of the uterus

A

vagina

53
Q

recess around the cervix formed by the vagina is called

A

vaginal fornix

54
Q

what closely associates to the rectouterine pouch of douglas

A

posterior fornix of the vagina

55
Q

what is the innervation of the vagina

A

uterovaginal plexus of nerves; parasym innervates this organ and the uterus

56
Q

round superior aspect of the uterus

A

fundus of the uterus

57
Q

constricted inferior aspect just superior to the cervix

A

isthmus of the uterus

58
Q

cylindrical, narrow protrusion into the vagina

A

cervix

59
Q

what 3 layers line the uterine wall

A
  1. perimetrium
  2. endometrium
  3. myometrium
60
Q

attaches ovaries to the uterus

A

ovarian ligament

61
Q

remnant of the gubernaculum along with the ovarian ligament, ends at labia majora

A

round ligament of the uterus

62
Q

double layer mesentery that attaches the uterus to the lateral walls of the pelvis

A

broad ligament

63
Q

mesentery of the broad ligament that surrounds the fallopian tube

A

mesosalpinx

64
Q

mesentery of the broad ligament that suspends the ovaries on the POSTERIOR aspect

A

mesovarium

65
Q

broad ligament that covers the ovarian artery and vein superiorly. attached to the lateral aspect of the ovary

A

suspensory ligaments

66
Q

what 4 parts are within the uterine tubes

A
  1. isthmus
  2. ampulla
  3. infundibulum
  4. fimbriae
67
Q

where does fertilization occur

A

ampulla of the uterus

68
Q

how are the ovaries attached to the uterus

A

ovarian ligament proper

69
Q

innervation of the ovaries

A

P/S: ovarian plexus from CN X and the inferior hypogastric plexus
afferent: T10

70
Q

space between the rectum and the bladder; lowest point in the male pelvis

A

rectovesical pouch

71
Q

fat filled space between the bladder and pubic bone

A

retropubic space

72
Q

space between the bladder and the anteverted uterus

A

vesicouterine pouch

73
Q

pouch between the rectum and the uterus extending down to the POSTERIOR FORNIX OF THE VAGINA

A

rectouterine pouch of douglas

74
Q

what is the lowest point of the female pelvis

A

rectouterine pouch of douglas

Viscera Lecture (11 decks)

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