Answers24 - 25 CR - Biology B 0411KBBody Organization

The Nervous System Answers

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1
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Which structure is at work when the body deals with reflex actions?

A
the heart
B
the brain stem
C
the vertebral column
D
the spinal cord
2
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Examine the words.impulse, presynaptic cell, neurotransmitters, receptors, postsynaptic cellWhat idea can be described using all the words listed?

A
the difference between the somatic and autonomic nervous systems
B
the transfer of information from one neuron to another
C
the difference between the central and peripheral nervous systems
D
the flow of information within a neuron
3

Which is a function performed by the central nervous system (CNS)? Select all that apply.processing information that is received from the stimuli receptorsreceiving stimuli and making the body react to those stimulisending out information so that the body can react appropriately to stimulicoordinating reflexes and reactions to stimulisensing stimuli and causing reactions in the body

A
processing information that is received from the stimuli receptors
B
receiving stimuli and making the body react to those stimuli
C
sending out information so that the body can react appropriately to stimuli
D
coordinating reflexes and reactions to stimuli
E
sensing stimuli and causing reactions in the body
4

The diagram shows a nerve cell.

Question illustration
A
A
B
B
C
C
D
D
5

Which is an example of how the peripheral nervous system helps the body maintain its internal environment?

A
Muscles produce keratin so that hair can grow stronger.
B
Sweat glands break down the food that is consumed.
C
Muscles contract rapidly to produce heat on a cold day.
D
The brain recalls information to help take a test.
7

Which is a function of the central nervous system?

A
pumping blood through the body
B
controlling coordination in the body
C
fighting bacteria that enter the body
D
breaking down carbohydrates in the body
8

What happens to the body when motor neurons are injured?

A
It releases more neurotransmitters.
B
It loses muscle movement.
C
It experiences increased stimuli.
D
It shows a decrease in inflammation.
9

Which function does a neuron perform in a human body?

A
It generates electrochemical signals so that the body can react to stimuli.
B
It produces antibodies to destroy pathogens for protection purposes.
C
It breaks down chemical substances into a form that is usable by the body.
D
It delivers oxygen to the cells of the body for metabolic processes.
10

The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?

A
the central nervous system
B
the peripheral nervous system
C
the somatic nervous system
D
the autonomic nervous system
11

When Gretchen starts being chased by a dog, her brain sends a signal to her muscles to run. Which neurons are at work?

A
sensory neurons
B
motor neurons
C
voluntary neurons
D
involuntary neurons
12

Which statement best describes the central nervous system?

A
It senses stimuli and carries out a reaction.
B
It secretes hormones.
C
It is made up of all nerve cells.
D
It is made up of the brain and the spinal cord.
13

The diagram shows a nerve cell.

Question illustration
A
A
B
B
C
C
D
D
14

Which autonomic system is most likely to be dominant while someone is experiencing stress about an upcoming job interview?

A
the peripheral nervous system
B
the sympathetic nervous system
C
the somatic nervous system
D
the parasympathetic nervous system
15

The sympathetic and parasympathetic nervous systems are both part of which division of the nervous system?

A
the central nervous system
B
the peripheral nervous system
C
the somatic nervous system
D
the autonomic nervous system
16

Which structure(s) are connected to the peripheral nervous system? Select all that apply.a vertebral columna sense organa musclea glanda bone

A
a vertebral column
B
a sense organ
C
a muscle
D
a gland
E
a bone
17

Which is an example of how the peripheral nervous system helps the body maintain its internal environment?

A
Muscles produce keratin so that hair can grow stronger.
B
Sweat glands break down the food that is consumed.
C
Muscles contract rapidly to produce heat on a cold day.
D
The brain recalls information to help take a test.
18

Which is an example of when Hector's somatic sensory system is in control?

A
After a long run, his body is sweating.
B
When jogging, he sees an ice patch and decides to change directions to a different route.
C
His eyes dilate because he sees something scary.
D
He eats a large meal and his body takes multiple hours to digest it.
19

Which structure is at work when the body deals with reflex actions?

A
the heart
B
the brain stem
C
the vertebral column
D
the spinal cord
20

Which is a function of the central nervous system?

A
pumping blood through the body
B
controlling coordination in the body
C
fighting bacteria that enter the body
D
breaking down carbohydrates in the body
21

Which is a function performed by the central nervous system (CNS)? Select all that apply.processing information that is received from the stimuli receptorsreceiving stimuli and making the body react to those stimulisending out information so that the body can react appropriately to stimulicoordinating reflexes and reactions to stimulisensing stimuli and causing reactions in the body

A
processing information that is received from the stimuli receptors
B
receiving stimuli and making the body react to those stimuli
C
sending out information so that the body can react appropriately to stimuli
D
coordinating reflexes and reactions to stimuli
E
sensing stimuli and causing reactions in the body

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