Pelvic Neurovasculature (8)

Question 1

________ supplies superior vagina ________ supplies inferior vagina

Answer 1

uterine a. -> superior vagina

vaginal a. -> inferior vagina

Question 2

what runs between uterine artery and vaginal artery?

Answer 2

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

Question 3

true or false? pelvic venous plexuses are valveless

Answer 3

true

Question 4

main autonomic plexus of pelvis

Answer 4

inferior hypogastric plexus

Question 5

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

Answer 5

ganglion impar

Question 6

ext. iliac aa. exits pelvis as

Answer 6

femoral aa.

Question 7

int. iliac enters ______ pelvis

Answer 7

true pelvis

Question 8

internal iliac aa. supplies

Answer 8

pelvic organs and gluteal region

Question 9

internal iliac branches

Answer 9

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.

Question 10

iliolumbar location & supply

Answer 10

between iliac crest and L5

supplies medial ilium & L5

Question 11

lateral sacral a. location & supply

Answer 11

enters ventral sacral foramina

supplies sacrum & ventral sacral nn.

Question 12

superior gluteal a. location & supply

Answer 12

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

Question 13

where do sup and inf. gluteal aa. exit?

Answer 13

greater sciatic foramen

Question 14

inferior gluteal a. location & supply

Answer 14

between S2 & S3 inf. to piriformis m.

supplies gluteal mm. w/ inf. gluteal nn.

Question 15

where does internal pudendal a. exit?

Answer 15

greater sciatic foramen

Question 16

where does internal pudendal a. enter gluteal region?

Answer 16

inferomedial to piriformis m.

Question 17

internal pudendal a. crosses over

Answer 17

sacrospinous ligament

Question 18

where does internal pudendal a. reenter pelvis?

Answer 18

lesser sciatic foramen

Question 19

internal pudendal a. location

Answer 19

in perineum (outside pelvic cavity)

Question 20

internal pudendal a. supplies

Answer 20

UG and anal triangles

Question 21

pudendal canal contains:

Answer 21

pudendal artery & nerve back in pelvis

Question 22

pudendal canal is formed by

Answer 22

fascia of obturator internus m.

Question 23

pudendal canal runs anteriorly along _________

Answer 23

ischiopubic ramus (toward UG triangle)

Question 24

umbilical a. & superior vesical a. terminate as

Answer 24

medial umbilical ligament

Question 25

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

Answer 25

anterior abdominal wall and send superior vesical aa. to bladder

Question 26

obturator a. runs through and supplies

Answer 26

obturator canal | medial thigh w/ obturator n.

Question 27

medial thigh is also known and the

Answer 27

adductor compartment

Question 28

corona mortis

Answer 28

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

Question 29

uterine a. anastomoses with

Answer 29

ovarian a. from aorta

Question 30

uterine a. supplies

Answer 30

uterus, cervix, superior vaginal canal

Question 31

ureter runs immediately below:

Answer 31

uterine artery

Question 32

vaginal a. (or inferior vesical a.) supplies

Answer 32

inferior vagina, rectum, bladder

Question 33

inferior vesical a. in males supplies

Answer 33

posterior inferior bladde, ureter, seminal vesical, prostate

Question 34

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

Answer 34

ureter

Question 35

middle rectal a. supplies

Answer 35

rectum

Question 36

middle rectal a. anastomoses with

Answer 36

sup. rectal from IMA | inf. rectal from internal pudendal a.

Question 37

ureter runs between what two arteries

Answer 37

uterina a. and vaginal a.

Question 38

this artery is tied off during hysterectomy and risks cutting _________

Answer 38

uterine a. tied off and risks cutting ureter

Question 39

internal iliac vv.

Answer 39

venous drainage of pelvis

Question 40

venous return of pelvis ultimately returns to

Answer 40

IVC

Question 41

Pelvic venous plexuses

Answer 41

venous network surrounding bladder, prostate or uterus, rectum

Question 42

sacral plexus provides:

Answer 42

somatic innervation

Question 43

autonomic plexus provides:

Answer 43

sympathetic and parasympathetic innervation

Question 44

somatic innervation of pelvis and perineum

Answer 44

sciatic & gluteal nn. | pudendal n.

Question 45

vental rami of sacral nn.

Answer 45

L4-S4

Question 46

Sacral plexus

Answer 46

L4-S4

Question 47

L4-L5 forms

Answer 47

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

Question 48

S1

Answer 48

emerges above piriformis m.

Question 49

S2-S3

Answer 49

emerges thru piriformis m.

Question 50

S2-S4

Answer 50

contributes to pudendal n.

Question 51

L4-S3

Answer 51

forms sciatic n. & gluteal n.

Question 52

sacral plexus components:

Answer 52

gluteal & sciatic nn. | pudendal n.

Question 53

autonomic plexus of pelvis - sympathetic fibers

Answer 53

T10-L2(3) prevertebral plexus | symp S2-S4 = sacral splanchnic nn.

Question 54

autonomic plexus of pelvis - parasympathetic fibers

Answer 54

S2-S4 = preganglionic parasympathetic | pelvic splanchnic nn.

Question 55

superior hypogastric plexus

Answer 55

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

Question 56

hypogastric nn. formed by

Answer 56

condensation of superior hypogastric plexus

Question 57

hypogastric n. to inferior hypogastric plexus

Answer 57

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

Question 58

inferior hypogastric plexus formed by

Answer 58

hypogastric nn. joined with pelvis and sacral splanchnic nn.

Question 59

inferior hypogastric plexus

Answer 59

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

Question 60

all pelvic autonomics are in

Answer 60

inf. hypogastric plexus

Question 61

in pelvis, sympathetic chains are located:

Answer 61

medial to sacral foramina

Question 62

sacral splanchnic nn.

Answer 62

T10-L2 | symp. fibers off sympathetic chain

Question 63

pelvic splanchnic nn.

Answer 63

parasymp. fibers off S2-S4

Question 64

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

Answer 64

arterial branches

Question 65

splanchnic nn. closely related to

Answer 65

lateral rectum and uterus

Question 66

abdominopelvic lymphatics - vessels and nodes lie along

Answer 66

aorta, IVC, iliac vessels

Question 67

abdominopelvic lymphatic drainage moves

Answer 67

superficial to deep | superiorly

Question 68

Right lymphatic duct drains:

Answer 68

R UL R head and neck R upper thorax

Question 69

Thoracic duct drains:

Answer 69

``` L UL L head and neck remainder of thorax abdomen LLs ```

Question 70

adbominal aorta bifurcates @

Answer 70

L4