Autonomic nervous system

Question 1

What are the 3 functions of the ANS?

Answer 1

Sensation
Integration
Response

Question 2

Wjhat are the 2 main types of cells in the ANS?

Answer 2

Neurones for functional and Neuroglia to support and protect

Question 3

What is meant by saltatory conduction? (2)

Answer 3

It speeds up a response
Only in myelinated nerves

Question 4

What is impulse generation? (3)

Answer 4

Caused by unequal distribution of Na and K
Causes differences in electrical charge
Has a resting membrane potential of -70v

Question 5

What is meant by conduction? (3)

Answer 5

Enable inhibitory and excitable functions
Synapse is a one way transmitter
Dependant on the release of neurotransmitter

Question 6

What is a neurotransmitter?

Answer 6

A neurotransmitter is a chemical released into a synaptic cleft that bind to post-synaptic receptors?

Question 7

Name the 4 types of neurotransmitter

Answer 7

Biogenic amines
Amino acids
Peptides
other

Question 8

Name a biogenic amine neurotransmitter

Answer 8

Acetylcholine and dopamine

Question 9

Name an amino acid neurotransmitter

Answer 9

GABA

Question 10

Which is the main system used from the ANS?

Answer 10

Efferent - transmits impulses from CNS to Peripheral organs

Question 11

What does the sympathetic nerve do?

Answer 11

Constricts - puts body on high alert

Question 12

What does parasympathetic nerve do?

Answer 12

Relaxes the body - puts body into resting state

Question 13

Efferent system is divided into what 2 functions?

Answer 13

sympathetic and parasympathetic

Question 14

What is the neurotransmitter in the ganglion?

Answer 14

ACh

Question 15

What is the main parasympathetic receptor?

Answer 15

Ach

Question 16

What is the main sympathetic receptor?

Answer 16

Norepinephrine