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Quiz on Nerve Cells and Impulses

Authored by Aswathy Menon

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University

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Quiz on Nerve Cells and Impulses
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the neuron receives input from other neurons?

Axon terminal

Soma

Dendrite

Synapse

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The myelin sheath is formed by:

Astrocytes and microglia

Schwann cells and oligodendrocytes

Ependymal cells and astrocytes

Dendrites and axons

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a function of glial cells?

Providing nutrients

Removing waste

Conducting action potentials

Forming myelin

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The resting potential of a neuron is typically:

+70 mV

-70 mV

0 mV

-120 mV

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The 'all-or-none' law of action potentials means:

Larger stimuli produce larger action potentials

Once threshold is reached, an action potential always occurs

Neurons can fire at varying strengths

Action potentials can travel in both directions

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The Na+/K+ pump moves:

3 sodium ions out, 2 potassium ions in

2 sodium ions in, 3 potassium ions out

Sodium and potassium equally in both directions

Calcium and chloride across the membrane

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Demyelination in multiple sclerosis primarily slows down:

Neurotransmitter release

Saltatory conduction

Action potential threshold

Receptor binding

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