Pelvis autonomics Flashcards

1
Q

Three sources of autonomic inn. to pelvis

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

pelvic splanchnic cord levels

A

S2-4

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3
Q

major sympathetic inn. to pelvis + cord levels

A

lumbar splanchnics (T11-L2)

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4
Q

minor sympathetic inn. to pelvis + cord levels

A

sacral splanchnics (T12-L2)

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5
Q

course of lumbar splanchnics

A

travel through hypogastric nn. to reach inferior hypogastric plexus

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6
Q

course of sacral splanchnics

A

descend through sympathetic chain to reach inferior hypogastric plexus

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7
Q

distribution of sympathetic innervation to perineum is via

A

pudendal nn.

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8
Q

distribution of parasympathetic innervation to perineum is via

A

cavernous nn.

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9
Q

sympathetic inn. to bladder

A

lumbar and sacral splanchnics (T10-L2)

  1. trigonal mm
  2. portion of sphincter urethrae
  3. pain fibers from ureter and superior bladder
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10
Q

parasympathetic inn. to bladder

A

pelvic splanchnics (S2-4)

  1. detrussor muscle
  2. vasomotor
  3. primary stretch afferent fibers
  4. pain fibers from inferior bladder and urethra
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11
Q

sympathetic inn. to testes

A

lesser splanchnic n. (T10-11)

  1. vasomotor
  2. pain fibers
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12
Q

sympathetic inn. to male reproductive viscera

A

lumbar and sacral splanchnics (T12-L2)

  1. vasomotor
  2. contraction of smooth muscle in ductus deferens, ejaculatory duct, prostate, and seminal vesicles.
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13
Q

parasympathetic inn. to male reproductive viscera

A

pelvic splanchnics (S2-4)

  1. vasomotor to erectile tissues
  2. secretion from prostate, seminal vesicles, and bulbourethral glands
  3. pain fibers
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14
Q

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

A

lesser splanchnic n. (T10-11)

  1. vasomotor
  2. pain fibers
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15
Q

sympathetic inn. to female reproductive viscera

A

lumbar and sacral splanchnics (T12-L2)

  1. vasomotor
  2. pain from uterus
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16
Q

parasympathetic inn. to female reproductive viscera

A

pelvic splanchnics (S2-4)

  1. vasomotor
  2. contraction of smooth mm.
  3. pain from cervix and upper vagina
17
Q

sympathetic inn. to rectum and proximal anal canal

A

lumbar and sacral splanchnics (L1-2)

  1. vasomotor
  2. motor control of internal sphincter
18
Q

parasympathetic inn. to rectum and proximal anal canal

A

pelvic splanchnics

  1. vasomotor
  2. contraction of smooth m. (peristalsis)
  3. pain from rectum
19
Q

inn. to distal anal canal (somatic)

A

inferior rectal branch of pudendal n.

20
Q

distension travels with (PS or S fibers)?

A

parasympathetic fibers

21
Q

pain above pelvic pain line (peritonealized organs) travels with

A

sympathetic fibers (T11-L2)

22
Q

pain below pelvic pain line (subperitoneal organs) travels with

A

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

23
Q

pain from testes, epididymus, and distal ductus deferens

A

T10-11 sympathetic fibers

24
Q

pain from internal male reproductive viscera

A

subperitoneal, pelvic splanchics (S2-4)

25
Q

pain from ovaries

A

peritoneal, T10-11

26
Q

pain from uterine tubes and uterus

A

peritoneal, T12-L2

27
Q

pain from cervix and upper vagina

A

subperitoneal, pelvic splanchnics (S2-4)

28
Q

pain from inferior vagina

A

somatic, pudendal n. (S2-4)

29
Q

lumbar epidural

A

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

30
Q

caudal epidural

A

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.

31
Q

pudendal n. block

A

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