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Anat unit 2 > Pelvic Neurovasculature (8) > Flashcards

Pelvic Neurovasculature (8) Flashcards

1
Q

________ supplies superior vagina ________ supplies inferior vagina

A

uterine a. -> superior vagina

vaginal a. -> inferior vagina

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2
Q

what runs between uterine artery and vaginal artery?

A

ureter - reason why risk of cutting ureter during uterine a. cut during hysterectomy

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3
Q

true or false? pelvic venous plexuses are valveless

A

true

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4
Q

main autonomic plexus of pelvis

A

inferior hypogastric plexus

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5
Q

site where pelvic sympathetic fibers converse and terminate ant. to coccyx

A

ganglion impar

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6
Q

ext. iliac aa. exits pelvis as

A

femoral aa.

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7
Q

int. iliac enters ______ pelvis

A

true pelvis

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8
Q

internal iliac aa. supplies

A

pelvic organs and gluteal region

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9
Q

internal iliac branches

A 
iliolumbar a.
lateral sacral a. 
superior gluteal a. 
inferior gluteal a. 
internal pudendal a. 
umbilical a. & superior vesical a.
obturator a. 
uterine a. 
vaginal a. 
middle rectal a.
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10
Q

iliolumbar location & supply

A

between iliac crest and L5

supplies medial ilium & L5

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11
Q

lateral sacral a. location & supply

A

enters ventral sacral foramina

supplies sacrum & ventral sacral nn.

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12
Q

superior gluteal a. location & supply

A

between L5 & S1
enters gluteal region superior to piriformis m.
supplies gluteal mm. with sup. gluteal nn.

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13
Q

where do sup and inf. gluteal aa. exit?

A

greater sciatic foramen

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14
Q

inferior gluteal a. location & supply

A

between S2 & S3 inf. to piriformis m.

supplies gluteal mm. w/ inf. gluteal nn.

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15
Q

where does internal pudendal a. exit?

A

greater sciatic foramen

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16
Q

where does internal pudendal a. enter gluteal region?

A

inferomedial to piriformis m.

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17
Q

internal pudendal a. crosses over

A

sacrospinous ligament

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18
Q

where does internal pudendal a. reenter pelvis?

A

lesser sciatic foramen

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19
Q

internal pudendal a. location

A

in perineum (outside pelvic cavity)

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20
Q

internal pudendal a. supplies

A

UG and anal triangles

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21
Q

pudendal canal contains:

A

pudendal artery & nerve back in pelvis

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22
Q

pudendal canal is formed by

A

fascia of obturator internus m.

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23
Q

pudendal canal runs anteriorly along _________

A

ischiopubic ramus (toward UG triangle)

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24
Q

umbilical a. & superior vesical a. terminate as

A

medial umbilical ligament

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25
Q

umbilical a. & superior vesical artery run toward _________ and send sup. vesical aa. to ________

A

anterior abdominal wall and send superior vesical aa. to bladder

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26
Q

obturator a. runs through and supplies

A

obturator canal

medial thigh w/ obturator n.

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27
Q

medial thigh is also known and the

A

adductor compartment

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28
Q

corona mortis

A

obturator a. anastomoses with inf. epigastric vessels ; damage opens int. and ext. iliac systems = death in minutes

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29
Q

uterine a. anastomoses with

A

ovarian a. from aorta

30
Q

uterine a. supplies

A

uterus, cervix, superior vaginal canal

31
Q

ureter runs immediately below:

A

uterine artery

32
Q

vaginal a. (or inferior vesical a.) supplies

A

inferior vagina, rectum, bladder

33
Q

inferior vesical a. in males supplies

A

posterior inferior bladde, ureter, seminal vesical, prostate

34
Q

what runs above vaginal a./inf. vesical a.

A

ureter

35
Q

middle rectal a. supplies

A

rectum

36
Q

middle rectal a. anastomoses with

A

sup. rectal from IMA

inf. rectal from internal pudendal a.

37
Q

ureter runs between what two arteries

A

uterina a. and vaginal a.

38
Q

this artery is tied off during hysterectomy and risks cutting _________

A

uterine a. tied off and risks cutting ureter

39
Q

internal iliac vv.

A

venous drainage of pelvis

40
Q

venous return of pelvis ultimately returns to

A

IVC

41
Q

Pelvic venous plexuses

A

venous network surrounding bladder, prostate or uterus, rectum

42
Q

sacral plexus provides:

A

somatic innervation

43
Q

autonomic plexus provides:

A

sympathetic and parasympathetic innervation

44
Q

somatic innervation of pelvis and perineum

A

sciatic & gluteal nn.

pudendal n.

45
Q

vental rami of sacral nn.

A

L4-S4

46
Q

Sacral plexus

A

L4-S4

47
Q

L4-L5 forms

A

LS trunk and crosses over sacral ala to descend into pelvic cavity

48
Q

S1

A

emerges above piriformis m.

49
Q

S2-S3

A

emerges thru piriformis m.

50
Q

S2-S4

A

contributes to pudendal n.

51
Q

L4-S3

A

forms sciatic n. & gluteal n.

52
Q

sacral plexus components:

A

gluteal & sciatic nn.

pudendal n.

53
Q

autonomic plexus of pelvis - sympathetic fibers

A

T10-L2(3) prevertebral plexus

symp S2-S4 = sacral splanchnic nn.

54
Q

autonomic plexus of pelvis - parasympathetic fibers

A

S2-S4 = preganglionic parasympathetic

pelvic splanchnic nn.

55
Q

superior hypogastric plexus

A

mostly sympathetic fibers (some p-symp ascending to supply hindgut @ splenic flexure)
covers bifurcation of aorta & upper sacrum
condenses to form hypogastric nn.

56
Q

hypogastric nn. formed by

A

condensation of superior hypogastric plexus

57
Q

hypogastric n. to inferior hypogastric plexus

A

mostly sympathetic fibers
diverge and curve to rectum
expands to form inf. hypogastric plexus

58
Q

inferior hypogastric plexus formed by

A

hypogastric nn. joined with pelvis and sacral splanchnic nn.

59
Q

inferior hypogastric plexus

A

contains sympathetic and parasympathetic fibers
covers pelvic viscera bilaterally
main autonomic plexus of pelvis

60
Q

all pelvic autonomics are in

A

inf. hypogastric plexus

61
Q

in pelvis, sympathetic chains are located:

A

medial to sacral foramina

62
Q

sacral splanchnic nn.

A

T10-L2

symp. fibers off sympathetic chain

63
Q

pelvic splanchnic nn.

A

parasymp. fibers off S2-S4

64
Q

sacral and pelvic splanchnic nn. travel on ________ to pelvic organs

A

arterial branches

65
Q

splanchnic nn. closely related to

A

lateral rectum and uterus

66
Q

abdominopelvic lymphatics - vessels and nodes lie along

A

aorta, IVC, iliac vessels

67
Q

abdominopelvic lymphatic drainage moves

A

superficial to deep

superiorly

68
Q

Right lymphatic duct drains:

A

R UL
R head and neck
R upper thorax

69
Q

Thoracic duct drains:

A 
L UL 
L head and neck
remainder of thorax
abdomen
LLs
70
Q

adbominal aorta bifurcates @

A

L4

Anat unit 2 (9 decks)

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