Question 1

Together, the somatic nervous system and the autonomic nervous system make up the ____ nervous system.

Accepted Answer

The somatic nervous system and the autonomic nervous system are both part of the peripheral nervous system, which consists of all the nerves outside of the brain and spinal cord. The central nervous system includes only the brain and spinal cord. The sympathetic division is a part of the autonomic nervous system and is responsible for the body's "fight or flight" response, but it is not the only component of the autonomic nervous system. The dorsal nervous system does not exist as a separate division from the somatic or autonomic nervous systems.

Question 2

Lia was scared by a loud noise. This caused her sympathetic system to activate her "fight or flight" response.

Accepted Answer

The sympathetic system is responsible for activating the "fight or flight" response in response to a perceived threat or stressor, such as a loud noise that scared Lia.

Question 3

Elane is studying for an anatomy quiz. She wrote in her notes that the central nervous system was made up of _____.

Accepted Answer

The central nervous system consists of the brain and the spinal cord. Option A is incorrect as the sympathetic and parasympathetic systems are part of the autonomic nervous system, which is a subdivision of the peripheral nervous system. Option B is also incorrect as the brain alone does not constitute the entire central nervous system. Option D is incorrect as sensory neurons are part of the peripheral nervous system.

Question 4

Neurons that directly convey messages to muscles and glands are part of the central nervous system.

Accepted Answer

Neurons that directly convey messages to muscles and glands are part of the peripheral nervous system, not the central nervous system. The central nervous system includes the brain and spinal cord.

Question 5

Although relatively small, the hypothalamus is very important for a large range of motivated behaviors.

Accepted Answer

The hypothalamus is responsible for regulating important motivated behaviors such as hunger, thirst, sexual behavior, and stress responses.

Question 6

The somatic nervous system carries signals from the ____ and is part of the ____.

Accepted Answer

The somatic nervous system carries signals from the senses such as touch, taste, sight, smell, and hearing and is part of the peripheral nervous system, which includes all nerves outside of the brain and spinal cord.

Question 7

The limbic system is important for motivation and emotional behaviors.

Accepted Answer

The limbic system, which includes structures like the amygdala and hippocampus, plays a key role in regulating emotions and motivation.

Question 8

Desirae touched a plate and it was hot. Which part of her nervous system conveyed this sensory information?

Accepted Answer

The answer of  Desirae touched a plate and it was...

Question 9

Which division of the nervous system consists of neurons that control the heart, intestines, and other organs?

Accepted Answer

The autonomic division of the nervous system consists of neurons that control the heart, intestines, and other organs involuntarily, meaning that we do not have conscious control over these functions. The other options do not describe the division of the nervous system that controls internal organs.

Question 10

The choroid plexus reabsorbs the cerebrospinal fluid.

Accepted Answer

The choroid plexus produces cerebrospinal fluid, while the arachnoid villi and granulations reabsorb it.

Question 11

The prefrontal cortex is important for working memory.

Accepted Answer

The prefrontal cortex is known to be important for working memory, as well as a number of other cognitive functions such as decision making and planning. Studies have shown that damage or dysfunction in this area can lead to deficits in working memory performance.

Question 12

The hindbrain consists of the medulla, the pons, and the cerebellum.

Accepted Answer

This statement is true. The hindbrain is composed of three parts: the medulla, the pons, and the cerebellum.

Question 13

Hai is exercising. His body prepares for movement by serotonin release in the substantia nigra.

Accepted Answer

Serotonin is a neurotransmitter that is involved in regulating mood, appetite, and sleep. It is not directly involved in preparing the body for movement. The substantia nigra is a region within the brain that is involved in regulating movement, but serotonin release does not occur there. Rather, dopamine release in the substantia nigra is important for initiating movement.

Question 14

Tanya has suffered damage to her striate cortex. She now experiences visual disturbances.

Accepted Answer

The striate cortex, also known as primary visual cortex or V1, is responsible for processing visual information. Damage to this area can lead to visual disturbances.

Question 15

Parasympathetic neurons use acetylcholine as their neurotransmitter.

Accepted Answer

Parasympathetic neurons release acetylcholine as their neurotransmitter, which binds to receptors on target cells and mediates a variety of functions, including slowing heart rate and promoting digestion.

Question 16

Abe has suffered damage to the right side of his cerebral cortex. As a result, he now has motor and sensory deficits on the right side of his body.

Accepted Answer

Damage to one side of the cerebral cortex typically results in motor and sensory deficits on the opposite side of the body due to the way most of the brain's pathways cross over to the other side.

Question 17

Cell bodies of motor neurons are located outside of the spinal cord.

Accepted Answer

The cell bodies of motor neurons are located within the spinal cord in the gray matter. The axons of these neurons extend outside of the spinal cord to innervate muscles and other targets in the body.

Question 18

Many cells in association areas of the brain respond to more than one sensory modality.

Accepted Answer

The answer of  Many cells in association areas of the...

Question 19

Some cranial nerves include both sensory and motor components.

Accepted Answer

Some cranial nerves contain both sensory and motor components, such as the trigeminal nerve (V), which has both sensory and motor branches.

Question 20

Venessa's hand is more proximal to her body than her shoulder.

Accepted Answer

This statement is incorrect. The shoulder is more proximal to the body than the hand.

Quiz 3: Anatomy and Research Methods