10.1 Disorders of Autonomic Nervous System Flashcards
1
Q
Divisions of autonomic nervous system
A
- sympathetic
- parasympathetic
- enteric
2
Q
fxn of nerve fiber type Aalpha
A
proprioception, somatomotor
3
Q
fxn of nerve fiber type Abeta
A
touch, pressure
4
Q
fxn of nerve fiber type Agamma
A
motor of muscle spindle
5
Q
fxn of nerve fiber type Adelta
A
pain esp cold, touch
6
Q
fxn of nerve fiber type B
A
preganglionic autonomic
7
Q
fxn of nerve fiber type C
A
thermal, heat pain, mechanoreceptor; postganglionic autonomic
8
Q
order nerve fiber types from largest to smallest diameter
A
Aalpha, Abeta, Agamma, Adelta, B, C
9
Q
order nerve fiber types from highest to lowest conduction velocity
A
Aalpha, Abeta, Agamma, Adelta, B, C
10
Q
heat defense response
A
- w/ incr core temp –>warm sensory neurons in medial preoptic hypothalamus activated –> incr skin vasodilation and sweating
- inhibited by cutaneous cold receptors
11
Q
cold defense response
A
- tonically have warm sensitive neurons inhibiting cold responsive neurons of dorsal medial hypothalamus (DMH)
- cold exposure –> decr warm sensitive neuron activity –> activate BOTH heat conserve (skin vasoconstriction) and heat gen (via shivering and nonshivering mech)
- via PAG and nucleus raphe pallidus
12
Q
Adie’s pupil
A
- tonic dilated pupil (but does react to prolonged light?)
- near response»_space; light response
- post-ganglionic short ciliary nerve lesion
13
Q
Adie’s pupil with areflexia
A
Adie’s syndrome
14
Q
Adie’s syndrome
A
Adie’s pupil with areflexia
15
Q
Adie’s pupil with anhidrosis
A
Ross’ syndrome
