Lecture 1 - PNS review

Question 1

Somatic includes…

Answer 1

Sensory and motor

Question 2

autonomic is made up of..

Answer 2

sympathetic and para sympathetic

Question 3

sympathetic is originating from ____-_____ region

Answer 3

thoraco-lumbar

Question 4

parasympathetic origin?

Answer 4

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

Question 5

motor neurons originate in the ___ horn

Answer 5

ventral

Question 6

Parasympathetic has

Answer 6

long pre ganglionic neurons - innervate most of the smooth muscle

Question 7

most of smooth muscle innervated by which nerve?

Answer 7

vagus

Question 8

sympathetic has

Answer 8

short pre ganglionic neurons - long post ganglionic neuron

Question 9

Rami generally means..

Answer 9

arm

Question 10

in the sympathetic chain the Preganglionic neuron travel through the

Answer 10

.White rami communicantes

Question 11

paravertebral means…

Answer 11

adjacent to the vertebrae

Question 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)

Answer 12

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)

Question 13

visceral pain is usually referred to ______ regions

Answer 13

somatic

Question 14

Referred pain is probably due to…

Answer 14

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

Question 15

Pain from paired viscus referred to skin…

Answer 15

on the same side

Question 16

Pain from unpaired viscera is referred to the midline because…

Answer 16

dual sensory nerve supply reaches both sides of spinal cord simultaneously

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