Unit Test — Unit test Answers

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Which stimulus would generate a response from the somatosensory system?

A
hearing a baby’s cry
B
smelling a skunk
C
tasting a sour apple
D
touching a hot pan
3

Which receptors are involved in detecting a hot pan and the resulting feeling of pain?

A
mechanoreceptors and photoreceptors
B
nociceptors and thermoreceptors
C
photoreceptors and nociceptors
D
mechanoreceptors and thermoreceptors
4

Which sends information from other parts of the body all the way to the brain?

A
neuroreceptors
B
sensory neurons
C
sensory receptors
D
neural pathways
5

What is true about all neurons?

A
They are bundled together in nerves that are surrounded by a protective sheath.
B
They all transmit signals through axons and receive neurotransmitters through dendrites.
C
They each bring nutrients to the brain and produce a fatty protective layer called myelin.
D
They all send signals from the brain to the body through long axons in the vertebral column.
7

The following image highlights the primary motor cortex and how it relates to controlling muscle movement.What best describes how the structure of the brain relates to different body functions?

Question illustration
A
Different sections of the brain are capable of performing every function but will only control one at a time.
B
Many different sections of the brain are responsible for different functions, and some sections have more specific functions than others.
C
There are three parts of the brain, and within each part, every section works on the exact same functions.
D
Every part of the brain is integrated with others so that every section must be working in order for any body function to occur.
8

The autonomic nervous system is the part of the peripheral nervous system that is responsible for

A
skeletal muscle movement.
B
involuntary bodily functions, such as sweating.
C
light, sound, taste, and smell detection.
D
new cell development.
10

When the brain receives the message that the environment around the body is very cold, the temperature signal begins in neurons of the

A
somatic nervous system.
B
sensory nervous system.
C
autonomic nervous system.
D
central nervous system.
12

Mario hears his brother open the door, so he turns toward the door to say hello. Which best describes the signals moving through Mario’s nervous system to make him react and turn around?

A
The sensory nervous system sends a signal to the central nervous system, then the brain sends a signal to the somatic nervous system.
B
The autonomic nervous system sends a signal to the central nervous system, then the brain sends a signal to the sensory nervous system.
C
The sensory nervous system sends a signal to the peripheral nervous system, then the brain sends a signal to the autonomic nervous system.
D
The autonomic nervous system sends a signal to the peripheral nervous system, then the brain sends a signal to the somatic nervous system.
13

Why does a healthy cardiovascular system help prevent neurological diseases and disorders?

A
because arteries provide the needed blood flow to the brain and neurons
B
because memory loss is prevented when the heart pumps efficiently
C
because the heart and spinal cord are close together in the body
D
because exercise is critical for proper breathing, which can prevent seizures
14

The central nervous system is responsible for many functions, including

A
detecting temperatures and textures of the environment around the body.
B
digesting food and determining where water is needed.
C
contracting muscles when the body is suddenly struck by an outside object.
D
regulating the sleep cycle, breathing rate, and body temperature.
15

What is the difference between a disease and a disorder?

A
A disease results from a harmful agent being introduced to the body, while a disorder does not result from a particular external agent.
B
A disease is a condition that may strike people of all ages, while a disorder strikes only the elderly population.
C
A disease is a life-threatening condition, while a disorder is only uncomfortable.
D
A disease is a short-term condition, while a disorder is a long-term condition.

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