ANS

Question 1

Sympathetic

Answer 1

Fight or flight

Question 2

Parasympathetic

Answer 2

Rest and digest

Question 3

Enteric

Answer 3

peristalsis & GI secretions

Work without input from sns /psns

Question 4

Mechanoreceptors

Answer 4

Stretch - veins bladder intestines

Pressure- aorta carotid sinuse and lungs

Question 5

Chemoreceptors

Answer 5

Chemical concentration in blood

Medulla- hydrogen and CO2

Hypothalamus- blood glucose

Taste buds olfactory stomache

Question 6

Nociceptors

Answer 6

Viscera- pressure and chemicals

Arterial walls- pressure, ischemia

Question 7

Thermoreceptors

Answer 7

Hypothal- blood temp

Cutaneous- skin temp

Question 8

Parasympathetic pre gang originate

Answer 8

In brainstem or sacral spinal cord (s2-4)

Question 9

Sympathetic originates

Answer 9

T1-L2/3

Question 10

Vagus nerve has what receptors?

Answer 10

Chemo bars noci mechao from aortic arch resp and digestive

Question 11

1st afferent pathway

Answer 11

1st- cranial nerves from viscera to nucleus solitarius (medulla) and integrates and send to autonomic centers in RF (pons and medulla), pregang neurons SNS PNS and parabrachial nuclear complex

Question 12

2nd route for afferent input

Answer 12

Visceral receptors -2nd order neuron (anterolateral) to VPL of thalamus OR dorsal column (DCML)- nucleus solitarius- autonomic centers in ponto-medullary RF.

Local interneurons in dorsal horn

Intermediate grey regions of SC where pregang of SNS PNS are visceral reflex actions

Question 13

What controls autonomic fxns

Answer 13

Pons and medulla

Question 14

Medulla

Answer 14

HR resp vasoconstriction/dilation via ANS eff in SC and via vagus nerve

Question 15

Pons

Answer 15

Control respiration

Question 16

Sympathetic efferent originates where in SC

Answer 16

Lateral horn

Question 17

Parasympathetic efferentorigninates where

Answer 17

Sacral grey matter

Question 18

SNS pregang originates

Answer 18

Lateral horn

Question 19

SNS pregang synapse where

Answer 19

Paravertebral, prevertebral gang, adrenal medulla

Question 20

Post gang neuron leaves via

Answer 20

Gray ramus from paravertebral ganglia to organs or prevertebral

Question 21

Parasympathetic outflow has what NT

Answer 21

Ach

Question 22

What are the raniosacral outflows

Answer 22

III, VII, IX, X

Question 23

CN III -

Answer 23

Edinger-westphal nucleus- pupil and accomodation reflex

Question 24

VII does what

Answer 24

Lacrimal glands salivary glands

Question 25

IX

Answer 25

Parotid gland (salivation)

Question 26

X

Answer 26

Dorsal motor nucleus of CNX - heart lung digestion

Question 27

Damage to where will cause ANS regulation probs

Answer 27

Brainstem or hypothalamic

Loss of temp reg- cant sweat

Question 28

Syncope

Answer 28

Loss of consciousness

Question 29

Hornets syndrome

Answer 29

Ipsil eyelid droop, constriction of pupil skin vasodilation no sweating

Question 30

PT role with ANS- anticipate following what

Answer 30

Bed rest
CNS damage
Meds

Question 31

If hypersensitive-

Answer 31

Deep breathing, decrease HR
Alter task complexity
Change environment

Question 32

Rise in BP

Answer 32

Activates baroreceptors
Inhibit SNS pregang
Decrease NE on SA node and cardiac muscle
Decreased vasoconstriction of peripheral blood vessels
Decrease NE/E output from adrenal medulla
Increase activity of PNS in nucleus ambiguous. (Decrease HR -Ach on SA node)