Lecture 1 - PNS review Flashcards Preview

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Flashcards in Lecture 1 - PNS review Deck (16):
1

Somatic includes...

Sensory and motor

2

autonomic is made up of..

sympathetic and para sympathetic

3

sympathetic is originating from ____-_____ region

thoraco-lumbar

4

parasympathetic origin?

sacral and cranial - brings the body back to a relaxed state

5

motor neurons originate in the ___ horn

ventral

6

Parasympathetic has

long pre ganglionic neurons - innervate most of the smooth muscle

7

most of smooth muscle innervated by which nerve?

vagus

8

sympathetic has

short pre ganglionic neurons - long post ganglionic neuron

9

Rami generally means..

arm

10

in the sympathetic chain the Preganglionic neuron travel through the

.White rami communicantes

11

paravertebral means...

adjacent to the vertebrae

12

Visceral afferent neurons can, n addition to travelling through the visceral ganglion to the _____horn, follow the _________ pathway back to CNS (i.e ____ nerve)

Visceral afferent neurons can, n addition to travelling through the visceral ganglion to the dorsal horm, follow the parasymapthetic pathway back to CNS (i.e vagus nerve)

13

visceral pain is usually referred to ______ regions

somatic

14

Referred pain is probably due to...

convergence of two inputs to the same population of neurons at a given spinal segment

15

Pain from paired viscus referred to skin...

on the same side

16

Pain from unpaired viscera is referred to the midline because...

dual sensory nerve supply reaches both sides of spinal cord simultaneously

*pain only referred to local overlying skin when somatic nerves involved