lect 3 & 4 pelvis (circulatory system of pelvis & nerves)

Question 1

which gender does the inferior vesicle artery occur in

Answer 1

males

Question 2

what is homologous to the inferior vesicle artery in males in females

Answer 2

vaginal artery

Question 3

what does the vaginal artery anastomose with

Answer 3

vaginal branch of the uterine artery

Question 4

what does the uterine artery typically branch off from

Answer 4

internal iliac

Question 5

what artery in males is homologous to the uterine artery in females

Answer 5

artery to ductus deferens

Question 6

where does the ureter pass in relation to the uterine artery

Answer 6

it passes immediately inferior to the uterine artery near the lateral part of the fornix of the vagina

Question 7

describe how the internal pudenal artery’s course runs in relation to the piriformis muscle and sacral plexus

Answer 7

passes inferolaterally, anterior to the piriformis and sacral plexus

Question 8

what artery do the branches of the deep and dorsal arteries of the penis/clitoris come off of

Answer 8

internal pudenal artery

Question 9

what are the branches of the posterior division of the internal iliac artery

Answer 9

superior gluteal artery, iliolumbar artery, lateral sacral arteries

Question 10

what are some anastomosing arteries to the internal iliac artery

Answer 10

lumbar and iliolumbar, medial sacral and lateral sacral, superior rectal and middle rectal, inferior gluteal and deep artery of thigh

Question 11

what does the ovarian artery arise from

Answer 11

abdominal aorta

Question 12

what is the direct continuation of the inferior mesenteric artery

Answer 12

superior rectal artery

Question 13

at what vertebral level does the superior rectal artery divide into 2 branches

Answer 13

S3

Question 14

what are the anterior division of the internal iliac artery

Answer 14

umbilical, obturator, inferior vesical/vaginal, middle rectal, uterine, internal pudendal

Question 15

what passes very close to the ureter

Answer 15

common iliac, ovarian artery, obturator artery, uterine artery, inferior vesicle artery

Question 16

what arteries pass through the greater sciatic foramen

Answer 16

superior and inferior gluteal artery

Question 17

where do the common iliac veins merge to form the IVC

Answer 17

L4 or L5 vertebrae

Question 18

where do the external iliac nodes drain

Answer 18

common iliac nodes

Question 19

where do the internal iliac nodes drain

Answer 19

common iliac nodes

Question 20

what receives lymph from the posteroinferior pelvic viscera

Answer 20

sacral lymph nodes

Question 21

what anterior rami compose the lumbar plexus

Answer 21

anterior rami of L1 through L4

Question 22

what does the obturator nerve emerge medially to

Answer 22

psoas major

Question 23

what anterior rami do the ilioinguinaland iliohypogastric nerves arise from

Answer 23

L1

Question 24

what anterior rami does the genitofemoral nerve arise from

Answer 24

L1 and L2

Question 25

what anterior rami does the lateral femoral cutaneous nerve arise from

Answer 25

L2 and L3

Question 26

how much of the population has the accessory obturator nerve

Answer 26

10%

Question 27

what are the 2 main branches of the sacral plexus

Answer 27

sciatic and pudendal nerves

Question 28

what is the largest nerve in the body

Answer 28

sciatic nerve

Question 29

what anterior rami form the sciatic nerve

Answer 29

L4-S3

Question 30

where do the anterior rami that form the sciatic nerve converge

Answer 30

anterior surface of piriformis

Question 31

what is the chief sensory nerve of the external genitalia

Answer 31

pudendal nerve

Question 32

what is the pudendal nerve derived from

Answer 32

anterior rami fo spinal nerves S2-S4

Question 33

what nerve is especially vulnerable during removal of cancerous lymph nodes from the lateral pelvic wall

Answer 33

obturator nerve

Question 34

where do the hypogastric plexuses and the pelvic splanchnic nerves merge

Answer 34

within the pelvis

Question 35

what is the primary function of the sacral sympathetic trunk

Answer 35

provide postsynaptic fibers to the sacral plexus for sympathetic innervation of the lower limb

Question 36

what is typically the greatest contribution of the pelvic parasympathetic/splanchnic nerves

Answer 36

S3 nerve

Question 37

what fibers produce erection

Answer 37

parasympathetic fibers

Question 38

what does the pelvic pain line correspond to

Answer 38

inferior limit of the peritoneum