ANS organs actions and receptors

Question 1

Heart / Chronotropy / Heart rate

Answer 1

S = increase B1
P = decrease M2

Question 2

Heart/ inotropy / contractile force

Answer 2

S = increase B1
P = slight decrease (most pronounced in atria) - no defined receptor

Question 3

Heart / dromotropy / conduction speed

Answer 3

S = increase B1
P = decrease M2

Question 4

Heart Lusitropy / relaxation speed

Answer 4

S = increase B1
P = slight decreased (mre pronunced in atria) - no defined receptor

Question 5

Blood vessels / radial muscle constriction

Answer 5

S = Constricts A1
P= Dialates genital vessels only M

Question 6

Blood Vessels / Circular muscle dialation

Answer 6

S = Dilates B2
P = no action

Question 7

Bronchioles

Answer 7

S = dilate B2
P= constricts M3

Question 8

GI Tract / Salivation

Answer 8

S = increases viscous secretsion B1
P= increases eatery secretions M3

Question 9

GI Tract / Gastric Secretion

Answer 9

S = Decreases A 2, B2
P = Increases M1

Question 10

GI Tract / GI wall motility

Answer 10

S = Relaxes a2, B2
P = Constricts M1

Question 11

Liver

Answer 11

S = Glycogenolysis B2
P = No effect

Question 12

Adipose

Answer 12

S = Lipolysis B2
P = No effect

Question 13

Endocrine Pancreas

Answer 13

S = inhibition of insulin, stimulation of glucagon
P = no effect

Question 14

Sweat Glands

Answer 14

S = increases secretion M3
P= No effect

Question 15

Penis

Answer 15

S = Ejaculation a1
P = Erection M3

Question 16

SANS Preganglionic neurons

Answer 16

Short and mylenated

Question 17

Location of SANS ganglion

Answer 17

close to spinal cord

Question 18

SANS Postganglionic neuron

Answer 18

Long and unmylenated

Question 19

PANS preganglionic neuron

Answer 19

Long and mylenated

Question 20

Location of PANS ganglion

Answer 20

very close to target organ if not on or in

Question 21

PANS postganglionic Neuron

Answer 21

short and unmylenated

Question 22

What is special about the adrenal medulla

Answer 22

it is a modified sympathetic ganglia, no postganglion neuron, secretes 80% Epi and 20% NE

Question 23

What are the two plexi of the enteric nervous system

Answer 23

Myenteric (Auerbacks)

Submucosal (Meissner’s)

Question 24

Myenteric plexus location

Answer 24

Between the longitudinal and circular layers

Question 25

Myenteric plexus function

Answer 25

controls GI motility

Question 26

Submucosal Plexus location

Answer 26

between circular layer muscle and the lumen

Question 27

Submucosal Plexus function

Answer 27

Regulates secretion, transport and defensive reactions to toxins and pathogens

Question 28

Cholinergic receptors

Answer 28

Nicotinic receptors are all preganglionic synapses

Question 29

Muscarinic receptors a

Answer 29

all PANS target tissue synapses

Question 30

Horner’s Syndrome pathology

Answer 30

interruption of sympathetic outflow to the eye

Question 31

Horner’s Syndrome symptoms

Answer 31

Ptosis - drooping of the eyelid
Miosis - abnormally decreased pupil size
Anhdrosis - decreased facial sweating

Question 32

Horner’s syndrome causes

Answer 32

stabbing/GSW to head or neck
tumors in lung or cervical lymph nodes
MS

Question 33

Pherochromocytoma

Answer 33

Tumor of the adrenal medulla leading to overproduction of Epi and NE

Question 34

Pherochromocytoma symptoms

Answer 34

Palpitations and tachycardia
HTN
Heat intolerance and sweating
Pallor
Anxiety
HA and V
Weight loss

Question 35

Raynaud Syndrome

Answer 35

uncontrolled vasoconstriction of blood vessels to the fingers as a result of uncontrolled SANS mediated constriction

Question 36

Syncope cause

Answer 36

Increased stimulation of PANS and decreased stimulation of SANS