ANS

Question 1

What are the two portions of the autonomic nervous system?

Answer 1

Sympathetic nervous system-> fight or flight

Parasympathetic nervous system-> rest and digest

Question 2

The sympathic division can all be referred to as the ______

The parasympathic division can all be referred to as the ______

Answer 2

Thoracic lumbar division. & cranial sacral nervous system/division

Question 3

What cranial and sacral Nerves are associated with the para sympathetic nervous system?

Answer 3

CN III, VII, IV, X, & sacral nerves 2,3,4

Question 4

The sympathetic preganglionic axon communicates with the post ganglionic neuron by the way of an excitatory synapse using the neurotransmitter ______

Answer 4

Acetylcholine (ACh)

Question 5

The neurotransmitter receptors that bind to norepinephrine or Epinephrine are called _________ receptors

Those that bind to acetylcholine (ACh) are _______ receptors

Answer 5

The neurotransmitter receptors that bind to norepinephrine or Epinephrine are called adrenergic receptors

Those that bind to acetylcholine (ACh) are cholinergic receptors

Question 6

What are the 5 Adrenergic receptors and their locations?

Answer 6

Alpha 1-> smooth muscle cells of many organs, erector pili and uterus during pregnancy

Alpha 2-> in preganglionic sympathetic neurons

Beta 1-> Cardiac/ kidney/ adipose tissue

Beta 2-> lungs, skeletal muscle fibres, Urinary bladder

Beta 3-> adipose tissue & smooth muscle cells in wall of digestive tract

Question 7

What are the two cholingenic receptors?

Answer 7

Muscarinic-> binds to poison muscarine

Nicotinic receptor-> binds to nicotine

Question 8

Mark each statement as true or false, correct if false

A) the vagus nerve (CN X) carries parasympathetic signals to the heart

B) parasympathetic innervation increases heart rate

C) the parasympathetic nervous system increases digestive secretions

Answer 8

A) true

B) false, it decrease HR

C) true

Question 9

Fill in the blank:

Pupil dilation occurs through the release of the neurotransmitter ________ from ______ neurons acting on ________ receptors, or through the inhibition of ________ receptors

Answer 9

Norepinephrine, sympathetic, alpha 1, cholinergic