Deck 16: Nervous System

Question 1

As an impulse is conducted through the nervous system,it is protected from the rest of the body by a:

A)Myelin sheath
B)Layer of glucose
C)Mineral barrier
D)None of the above

Answer 1

A
A myelin sheath is a specialized type of insulation found in the NS; it consists of phospholipids and proteins that form a sheath (covering)around the axon of a neuron.

Question 2

During a fight-or-flight response:

A)Nonessential systems are shut down
B)Senses are dulled
C)Energy is sent to the muscular system.
D)All the above
E) Only A and C

Answer 2

E
During the fight-or-flight stress response,the sympathetic system shuts down the nonessential systems of the body.This redirects energy to other areas such as the muscular system.

Question 3

The weight of an adult's brain is 1.4 lb.

Answer 3

False
An adult's brain weighs approximately 1.4 kg (3 lb).

Question 4

One warning signal from the body is muscular pain.

Question 5

Which of the following is not true of myasthenia gravis?

A)It is an autoimmune disorder.
B)It results in musculoskeletal weakness.
C)It affects more men than women.
D)It affects 3 of every 100,000 Americans.

Question 6

Migraine triggers can be related to hormones,stress,or food.

Question 7

An adult brain contains:

A)100 billion nerve cells
B)12 trillion nerve cells
C)30,000 nerve cells
D)150 million nerve cells

Question 8

The direction of neuronal impulse from the body toward the central nervous system is referred to as autonomic.

Question 9

The nervous system is composed of:

A)Connective tissues
B)Sensory neurons
C)Epithelial cells
D)Macrophages

Question 10

The reason the lower leg extends when the knee is tapped is because of the lock and key mechanism.

Question 11

Which of the following is one of the primary neurotransmitters?

A)Caffeine
B)Norepinephrine
C)Phospholipids
D)Monoamine oxidases

Question 12

EpiPens need an auxiliary label because:

A)They cause drowsiness
B)They are a legend drug
C)They are for emergency use
D)A nurse will always administer an EpiPen

Question 13

The somatic system is a network of nerves that relay messages about internal sensations.

Question 14

In the parasympathetic nervous system,nerves are separated from each other by a saline layer.

Question 15

Neurotransmitters are how electrical nerve impulses are transmitted between neurons.

Question 16

Neurotransmitters only excite nerve cells.

Question 17

The limbic system contains:

A)Phalanges
B)The frontal lobe
C)The temporal lobe
D)The amygdala

Question 18

The cerebral cortex is the largest area of the brain.

Question 19

Which of the following is not a main function of the nervous system (NS)?

A)Relaying impulses to and from the central nervous system
B)Coordination of nervous system activities
C)Detection of body changes
D)Transportation of nutrients

Question 20

Which of the following is not a state in the transmission of a chemical message?

A)Repolarized
B)Depolarized
C)Prepolarized
D)Polarized

Question 21

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Temporal lobe

Question 22

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Parietal lobe

Question 23

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Medulla oblongata

Question 24

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Frontal lobe

Question 25

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Midbrain

Question 26

Match the area of the brain with the function it controls.
a.Perception of vision
d.Problem solving
b.Respiration
e.Behavior
c.Voluntary movement
f.Understanding language
Occipital lobe