Autonomic Nervous System - Function

Question 1

Neurotransmitters in ANS work on

Answer 1

different types of receptors in post-ganglionic neurons or target organs

Question 2

Types of Noradrenaline (NA) receptors

Answer 2

Alfa Receptors

Beta Receptors

Question 3

Types of Acetylcholine (ACh) receptors

Answer 3

Nicotinic Receptors

Muscarinic Receptors

Question 4

Nicotinic receptors respond to

Answer 4

ACh

Nicotine

Question 5

Nicotinic receptors are found

Answer 5

Autonomic ganglia (within)
Skeletal muscle neuromuscular junction (Somatic NS)

Question 6

Muscarinic receptors respond to

Answer 6

ACh

Muscarine

Question 7

Muscarinic receptors are found

Answer 7

at parasympathetic target organs

Question 8

Propranolol is a

Answer 8

Beta Block (blood pressure)

Question 9

Atropine is a

Answer 9

Muscarinic blocker

Blocks ACh and Muscarine

Question 10

SNS - Beta receptors cause

Answer 10

relaxation fo smooth muscle

Question 11

SNS - Alfa receptors cause

Answer 11

contraction of smooth muscles

Question 12

Rest and digest activities of PSN

Answer 12

Salivation
Lacrimation (tears)
Urination
Digestion
Defaecation

Question 13

Three Decreases of PSN

Answer 13

Decreased Heart Rate
Decreased Airway Diameter
Decreased Pupil Size

Question 14

Parasympathetic NS is responsible for

Answer 14

Rest and Digest

Question 15

Sympathetic NS is responsible for

Answer 15

Flight or Flight

Question 16

Flight or Flight response by SNS

Answer 16

Pupillary dilation
Increased HR
Increased heart contractility
Constriction of blood vessels to skin and gut (α receptors)
Dilation of blood vessels to heart, muscles and lungs ( β receptors)