Chapter 8

Question 1

What is the difference between an EPSP and an IPSP

Answer 1

EPSP depolarize the cell, IPSP hyperpolarize the cell

Question 2

What is are the two types of summation

Answer 2

Temporal and spatial

Question 3

What is temporal summation

Answer 3

Firing of the same neuron multiple times within a short time frame

Question 4

What is spatial summation

Answer 4

Firing of multiple neurons at the same time

Question 5

When an action potential reaches the axon terminal what kind gates are opened?

Answer 5

Voltage-gated Calcium channels

Question 6

When voltage-gated channels open is there calcium influx or efflux?

Answer 6

Influx - calcium is entering the cell

Question 7

What does calcium influx at the axon terminal cause

Answer 7

Translocation of vesicles that contain neurotransmitter

Question 8

What is the gap between the pre-synaptic and post-synaptic neuron called

Answer 8

Synaptic cleft

Question 9

Name four ways a neurotransmitter can be removed from a synapse

Answer 9

1. Bloodstream
2. Diffusion
3. Enzyme that breaks down neurotransmitter
4. Resequestered into pre-synaptic neuron

Question 10

What are two kinds of receptors

Answer 10

Ionotropic and metabotropic

Question 11

What kind of receptors does acetylcholine bind to

Answer 11

Cholinergic

Question 12

What are the two classifications of cholinergic receptors

Answer 12

Muscarnic

Nicotinic