Review

Question 0

Tremor-at-rest is a symptom of ………………..

Answer 0

Parkinson’s disease

Question 1

Roberta Garcia d’Orta referred to himself as “a great lizard frozen in a dark, cold, strange world.” He suffered from ………..

Answer 1

Parkinson’s disease

Question 2

Microelectrodes are required to record a neuron’s resting …………

Answer 2

Potential

Question 3

The resting potential is about ………..

Answer 3

-70 mV

Question 4

In its resting state, a neuron is said to be ………….

Answer 4

Polarized

Question 5

Two factors promote the even distribution of ions across neural membranes: ………………… and electrostatic pressure.

Answer 5

Random motion

Question 6

In the resting state, there is a greater concentration of Na+ ions …………. the neural membrane than ……………… the neural membrane

Answer 6

Outside; inside

Question 7

Natrium is Latin for ……………….

Answer 7

Sodium

Question 8

Ions pass through neural membranes via specialized pores called …………….

Answer 8

Ion channels

Question 9

From their calculations, Hodgkin and Huxley, inferred the existence of ……………….. in neural membranes

Answer 9

Sodium potassium pumps

Question 10

Neurotransmitters typically have one of two effects on post synaptic neurons: they either depolarize them or ………………..

Answer 10

Hyper polarize them

Question 11

Post synaptic depolarizations are commonly referred to in their abbreviated form: …………………..

Answer 11

EPSP

Question 12

Action potentials are generated near, but not at, the …………………

Answer 12

Axon hillock

Question 13

An action potential is elicited when the depolarization of the neuron reaches the ………………………

Answer 13

Threshold of excitation

Question 14

Unlike post synaptic potentials, which are graded, action potentials are ……………… responses

Answer 14

All or none

Question 15

Neurons integrate post synaptic potentials two ways: through spatial summation and through ……………….. summation

Answer 15

Temporal