Which of the following best describes the function of the sympathetic nervous system?
A.
It creates equilibrium in the body.
B.
It arouses the body and expends energy.
C.
It raises the energy level of the body.
D.
It calms the body and conserves energy.
answer
b
question
Which of the following is the best example of the function of the peripheral nervous system?
A.
It connects the central nervous system to the rest of the body.
B.
It commands the rest-and-digest and fight-or-flight functions of the body.
C.
It connects the central nervous system to the muscles of the body.
D.
It commands reflexes, digestion, heartbeat, and other functions of the body.
answer
a
question
Control of glands and the muscles of internal organs is a function of the __________ nervous system.
A.
parasympathetic
B.
somatic
C.
peripheral
D.
autonomic
answer
d
question
About how many neurons are in the brain?
10,000
100 billion
10 trillion
100 million
answer
100 billion
question
Identify and explain how the central nervous system is supported and protected.
answer
The central nervous system is protected by the cerebrospinal fluid and meninges. The meninges form three layers of protective tissue that wrap around the brain and spinal cord. The cerebrospinal fluid protects and supports the central nervous system by nourishing and protecting the nerve tissue of the brain and spinal cord. Located between the layers of meninges, cerebrospinal fluid also acts as a shock absorber for the central nervous system.
question
Name and define the two types of impulses sent through the cranial and spinal nerves of the peripheral nervous system.
answer
The two types of impulses sent through the cranial and spinal nerves of the peripheral nervous system are sensory and motor impulses. Sensory impulses are neural messages that travel from the internal and external environment to the spinal cord and brain. Motor impulses are neural messages that travel from the spinal cord and brain to the body.
question
The __________ nervous system is comprised of the brain and spinal cord.
A.
somatic
B.
peripheral
C.
sympathetic
D.
central
answer
d
question
Identify the four main divisions of the peripheral nervous system and explain each one's function.
answer
The peripheral nervous system is divided into the somatic and autonomic nervous systems, and the autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems. The somatic nervous system controls voluntary skeletal muscles. The autonomic nervous system controls the glands and the muscles of the internal organs. The sympathetic nervous system arouses the body and expends energy. It is responsible for our fight and flight response. The parasympathetic nervous system calms the body and conserves energy. It is responsible for our rest and digest response.
question
Identify the nervous system responsible for calming the body and conserving energy.
answer
The parasympathetic nervous system is responsible for calming the body and conserving energy. As the body conserves energy, pupils contract, heartbeat slows, blood pressure decreases, and digestion is stimulated.
question
Controlling voluntary skeletal muscles is a function of the __________ nervous system.
A.
sympathetic
B.
somatic
C.
autonomic
D.
central
answer
b
question
Our brain enables us to do all the following except __________.
A.
think
B.
socialize
C.
talk
D.
move
answer
b
question
Which of the following best describes the function of nerves?
A.
They send information around to different cells of the body.
B.
They connect the brain to the body.
C.
They carry messages from the muscles.
D.
They carry sensory and motor impulses.
answer
d
question
Which system consists of nerves that initiate communication?
A.
the central nervous system
B.
the somatic nervous system
C.
the parasympathetic nervous system
D.
the peripheral nervous system
answer
d
question
The nerves of the somatic nervous system connects to which two parts of the body?
A.
motor muscles and chemical receptors
B.
heart muscles and sensory receptors
C.
cranial muscles and motor receptors
D.
skeletal muscles and sensory receptors
answer
d
question
All of the following physical reactions occur when our fight-or-flight response is triggered except __________.
A.
dilating pupils
B.
increasing heartbeat
C.
increasing digestion
D.
increasing perspiration
answer
c
question
Which of the following best describes the function of the parasympathetic nervous system?
A.
It calms the body and conserves energy.
B.
It maintains internal equilibrium of the body.
C.
It arouses the body and expends energy.
D.
It conducts energy around the body.
answer
a
question
What are the two main components of the nervous system?
A.
the brain nervous system and the spinal cord nervous system
B.
the parasympathetic nervous system and the brain nervous system
C.
the cranial nervous system and the parasympathetic nervous system
D.
the central nervous system and the peripheral nervous system
answer
d
question
What are the two divisions of the autonomic nervous system?
A.
sympathetic and central nervous systems
B.
central and somatic nervous systems
C.
sympathetic and parasympathetic nervous systems
D.
parasympathetic and somatic nervous systems
answer
c
question
Which nervous system is comprised of the somatic and autonomic nervous systems?
A.
the central nervous system
B.
the peripheral nervous system
C.
the sympathetic nervous system
D.
the parasympathetic nervous system
answer
b
question
Where is the brain located?
A.
in the spinal cord
B.
in the neck
C.
in the chest cavity
D.
in the skull
answer
d
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