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Neurons and Neurotransmitters

Authored by Marielos Catota

Biology

University

Used 1+ times

Neurons and Neurotransmitters
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of a neuron?

Transmit electrical and chemical signals

Store oxygen

Regulate blood pressure

Produce hormones

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The part of the neuron that receives incoming signals is called:

Axon

Soma

Dendrite

Myelin sheath

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The myelin around the axons mainly functions to:

Prevent apoptosis

Increase the speed of electrical conduction

Regulate the release of synaptic vesicles

Produce neurotransmitters

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The space between two neurons where neurotransmission occurs is the:

Axonal terminal

Synaptic cleft

Myelin sheath

Soma

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following carries information away from the neuron's cell body?

Dendrite

Axon

Nucleus

Synapse

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which ion is more critical for the release of neurotransmitters?

Sodium (Na⁺)

Potassium (K⁺)

Calcium (Ca²⁺)

Chloride (Cl⁻)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The principle of 'all or nothing' of action potentials means:

A weak stimulus creates a smaller action potential

An action potential always occurs completely or does not occur at all

Action potentials vary with the type of neurotransmitter

Dendrites control the action potential

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