Question Question 1 Regulation of the production of br

19 Jun Question Question 1 Regulation of the production of br

Question

Question 1

Regulation of the production of breast milk, carbohydrate metabolism, and temperature control are some of the functions of the:

Answer

 

frontal lobe.

 

midbrain.

 

medulla oblongata.

 

thalamus.

 

hypothalamus.

1 points

 

Question 2

Oligodendrocytes are similar to Schwann cells in that they:

Answer

 

are a type of neuroglial cell.

 

are located in the central nervous system.

 

conduct nerve impulses.

 

help neurons regenerate after injury.

 

are located in the peripheral nervous system.

1 points

 

Question 3

The central nervous system is composed of

Answer

 

the brain and spinal cord

 

the autonomic nervous system and brain

 

the somatic division and the autonomic division

 

the sensory division and the motor division

 

the somatic division and the motor division

1 points

 

Question 4

A student noticed that every time he smelled a certain perfume in the hallway, it reminded him of his mother. This is due largely to the activity of the limbic system.

Answer

True

 

False

 

1 points

 

Question 5

The functional barrier between blood and the brain is cerebrospinal fluid.

Answer

True

 

False

 

1 points

 

Question 6

The two subdivisions of the nervous system are the central nervous system and the peripheral nervous system.

Answer

True

 

False

 

1 points

 

Question 7

Which of the following is typical of spinal cord injuries?

Answer

 

Most injuries involve the crushing of axons in the spinal cord.

 

Swelling, caused by bleeding at the site of injury, results in damage to axons.

 

Macrophages sometimes destroy healthy tissue near the site of injury as they attempt to clear the area of debris.

 

Several weeks after the injury, fluid-filled cysts form, blocking nerve signals.

 

all of the above

1 points

 

Question 8

During periods of stress or increased activity, the parasympathetic division of the autonomic nervous system predominates; during periods of rest, the sympathetic division of the autonomic nervous system predominates.

Answer

True

 

False

 

1 points

 

Question 9

The left and right sides of the cerebrum are interconnected by the:

Answer

 

pons.

 

medulla oblongata.

 

corpus callosum.

 

thalamus.

 

cerebral cortex.

1 points

 

Question 10

Cells that provide direct protection and physical support to neurons are

Answer

 

only located in spinal fluid.

 

found primarily in lymphatic fluid.

 

are myelinated.

 

neuroglial cells.

 

Schwann cells

1 points

 

Question 11

Which of the following is not true regarding the limbic system?

Answer

 

It controls emotional behavior.

 

Stimulation of different areas of the limbic system results in feelings of fear, anger, or love.

 

It includes pathways for the sense of smell.

 

The midbrain serves as the gateway to and from the limbic system.

 

Information from the limbic system is interpreted by the cerebrum.

1 points

 

Question 12

During repolarization of a neuron

Answer

 

sodium channels close and potassium rushes out of the cell to temporarily re-establish the membrane potential.

 

potassium channels close, preventing further loss of positive ions.

 

the sodium-potassium pump is turned off.

 

sodium channels open to allow sodium ions to rush back out of the cell.

 

the membrane potential is eliminated.

1 points

 

Question 13

Amyotrophic lateral sclerosis (ALS) is a disease that results from nerve damage in the:

Answer

 

brain.

 

diaphragm.

 

intercostal muscles.

 

spinal cord.

 

sensory nerves.

1 points

 

Question 14

Electrical impulses are transmitted between components of the central nervous system via

Answer

 

glial cells

 

motor neurons

 

sensory neurons

 

interneurons

 

macrophages

1 points

 

Question 15

Excitatory neurotransmitters encourage the generation of new electrical impulses by

Answer

 

stimulating saltatory conduction.

 

stimulating depolarization of postsynaptic neurons.

 

inhibiting postsynaptic neurons from repolarizing.

 

inhibiting presynaptic neurons from depolarizing.

 

stimulating depolarization of presynaptic neuorons