08 Jan The autonomic nervous

BSC2346 Human Anatomy and Physiology

Module 06 Quiz

Question 1

Which statement is true regarding the motor (efferent) division of the nervous system?

Answers:

Transmits information from the central nervous system to the body

Pertains to sensory information/stimuli

It is part of the central nervous system

Delivers information about the external environment to the brain

Question 2

Which statement is true regarding neurons?

Answers:

Both the axons and dendrites receive information from other neurons and cells

The nucleus of the neuron is located in the axon

Neurotransmitters are released from the axon terminal(s)

Myelin sheaths provide protection to the axons but slow the nerve impulse (action potential) through it

Question 3

Which statement is true regarding neurons?

Answers:

They are only found in the central nervous system

Dendrites pass information from the neuron to another cell

All axons have myelin sheaths surrounding them

The action potential is transmitted from the cell body to the axon terminal

Question 4

Action potential is unique to neurons and muscle cells. Other body cells do not use this process.

Answers:

True

False

Question 5

Chemicals released at the axon terminal are called

Answers:

Inhibitors

Neurons

Neurotransmitters

Secretions

Question 6

An action potential can only be propagated along a myelinated axon.

Answers:

True

False

Question 7

During the repolarization phase of an action potential, the neuron begins to regain its negative internal charge.

Answers:

True

False

Question 8

The generation or creation of an action potential depends on the strength of the stimulus a neuron receives.

Answers:

True

False

Question 9

Which statement is true regarding the neuron synapse?

Selected Answer:

Binding of a neurotransmitter on the postsynaptic neuron membrane can generate an action potential in that neuron

Answers:

The presynaptic and postsynaptic neuron membranes are not physically separated

Binding of a neurotransmitter on the postsynaptic neuron membrane can generate an action potential in that neuron

The binding of a neurotransmitter always causes an excitatory effect on that cell, never inhibitory

The human body only uses one type of neurotransmitter in all of its synapses

Question 10

Which statement is true regarding neurons?

Answers:

Sensory (afferent) neurons transmit information from the brain to muscles

Motor (efferent) neurons transmit information from one muscle to another muscle

Interneurons are found in both the central and peripheral nervous system

Sensory (afferent) and Motor (efferent) neurons are considered part of the peripheral nervous system

Question 11

As long as neurotransmitters are bound to a receptor, ion channels remain open.

Answers:

True

False

Question 12

Dopamine is categorized as which structural type of neurotransmitter?

Answers:

Muscle contractor

Biogenic Amines

Amino acids

Inhibitory

Question 13

Which statement is true regarding the nervous system?

Answers:

Neuroglia cells are only responsible for providing immunity to the nervous cells

Depolarization is the reduction of the membrane potential; going from negative to a more positive charge

Neurons can communicate with other cells without the use of neurotransmitters

Damaged myelin on an axon has no effect with its ability to transmit an action potential

Question 14

During an action potential, positive ions move into the cell as the depolarization spreads down the axon.

Answers:

True

False

Question 15

The autonomic nervous system is a sub-division of sensory (afferent) division?

Answers:

True

False