Pelvis autonomics

Question 1

Three sources of autonomic inn. to pelvis

Answer 1

1. lumbar splanchnic nn. (S)
2. sacral splanchnic nn. (S)
3. pelvic splanchnic nn (PS)

Question 2

pelvic splanchnic cord levels

Answer 2

S2-4

Question 3

major sympathetic inn. to pelvis + cord levels

Answer 3

lumbar splanchnics (T11-L2)

Question 4

minor sympathetic inn. to pelvis + cord levels

Answer 4

sacral splanchnics (T12-L2)

Question 5

course of lumbar splanchnics

Answer 5

travel through hypogastric nn. to reach inferior hypogastric plexus

Question 6

course of sacral splanchnics

Answer 6

descend through sympathetic chain to reach inferior hypogastric plexus

Question 7

distribution of sympathetic innervation to perineum is via

Answer 7

pudendal nn.

Question 8

distribution of parasympathetic innervation to perineum is via

Answer 8

cavernous nn.

Question 9

sympathetic inn. to bladder

Answer 9

lumbar and sacral splanchnics (T10-L2)

1. trigonal mm
2. portion of sphincter urethrae
3. pain fibers from ureter and superior bladder

Question 10

parasympathetic inn. to bladder

Answer 10

pelvic splanchnics (S2-4)

1. detrussor muscle
2. vasomotor
3. primary stretch afferent fibers
4. pain fibers from inferior bladder and urethra

Question 11

sympathetic inn. to testes

Answer 11

lesser splanchnic n. (T10-11)

1. vasomotor
2. pain fibers

Question 12

sympathetic inn. to male reproductive viscera

Answer 12

lumbar and sacral splanchnics (T12-L2)

1. vasomotor
2. contraction of smooth muscle in ductus deferens, ejaculatory duct, prostate, and seminal vesicles.

Question 13

parasympathetic inn. to male reproductive viscera

Answer 13

pelvic splanchnics (S2-4)

1. vasomotor to erectile tissues
2. secretion from prostate, seminal vesicles, and bulbourethral glands
3. pain fibers

Question 14

sympathetic inn. to ovaries and uterine tubes (minimal importance)

Answer 14

lesser splanchnic n. (T10-11)

1. vasomotor
2. pain fibers

Question 15

sympathetic inn. to female reproductive viscera

Answer 15

lumbar and sacral splanchnics (T12-L2)

1. vasomotor
2. pain from uterus

Question 16

parasympathetic inn. to female reproductive viscera

Answer 16

pelvic splanchnics (S2-4)

1. vasomotor
2. contraction of smooth mm.
3. pain from cervix and upper vagina

Question 17

sympathetic inn. to rectum and proximal anal canal

Answer 17

lumbar and sacral splanchnics (L1-2)

1. vasomotor
2. motor control of internal sphincter

Question 18

parasympathetic inn. to rectum and proximal anal canal

Answer 18

pelvic splanchnics

1. vasomotor
2. contraction of smooth m. (peristalsis)
3. pain from rectum

Question 19

inn. to distal anal canal (somatic)

Answer 19

inferior rectal branch of pudendal n.

Question 20

distension travels with (PS or S fibers)?

Answer 20

parasympathetic fibers

Question 21

pain above pelvic pain line (peritonealized organs) travels with

Answer 21

sympathetic fibers (T11-L2)

Question 22

pain below pelvic pain line (subperitoneal organs) travels with

Answer 22

parasympathetic fibers (S2-4), pelvic splanchnic nn.

Question 23

pain from testes, epididymus, and distal ductus deferens

Answer 23

T10-11 sympathetic fibers

Question 24

pain from internal male reproductive viscera

Answer 24

subperitoneal, pelvic splanchics (S2-4)

Question 25

pain from ovaries

Answer 25

peritoneal, T10-11

Question 26

pain from uterine tubes and uterus

Answer 26

peritoneal, T12-L2

Question 27

pain from cervix and upper vagina

Answer 27

subperitoneal, pelvic splanchnics (S2-4)

Question 28

pain from inferior vagina

Answer 28

somatic, pudendal n. (S2-4)

Question 29

lumbar epidural

Answer 29

blocks all pain, can’t walk, can’t time abdominal pushes with uterine contractions

Question 30

caudal epidural

Answer 30

blocks pain below S1. Pain felt from contractions, but not from passage of fetus through birth canal. Can walk and time pushing with uterine contractions.

Question 31

pudendal n. block

Answer 31

blocks pain from tearing. Pudendal n. courses over ischial spine.