Question 1

Heidi injured a ventral root below her ribs. What problem will she likely experience?
A) She will not be able to close her eyes.
B) She will become deaf.
C) She will lose all sense of touch in her abdomen.
D) She will have trouble walking.

Accepted Answer

The ventral root of a spinal nerve contains motor (efferent) fibers that are responsible for movement. An injury to a ventral root below the ribs could affect the muscles that are involved in walking, leading to trouble with this activity.

Question 2

As John walked outside the ballpark, a foul ball sailed over the fence and came straight at him. He saw it, and before he could think of what to do, he had reflexively jumped out of the way. What part of the brain saved John from a nasty bump?
A) hypothalamus
B) pons
C) medulla oblongata
D) midbrain

Accepted Answer

The midbrain is responsible for reflexive movements such as jumping out of the way of an oncoming object.

Question 3

The ________ continually senses and adjusts our body systems to maintain homeostasis.

Accepted Answer

The answer of The ________ continually senses and adjusts our...

Question 4

The ________ is the branch of the peripheral nervous system that is made up of nerves that carry information to and from the CNS, which results in sensations and voluntary movement.

Accepted Answer

The answer of The ________ is the branch of the...

Question 5

The ________ is responsible for converting information from the short-term to the long-term memory.

Accepted Answer

The answer of The ________ is responsible for converting information...

Question 6

Stress, relaxation, hunger, consuming the wrong foods, and too much or too little sleep can contribute to which of the following?
A) stroke
B) coma
C) headache
D) spinal cord injury

Accepted Answer

Stress, relaxation, hunger, consuming the wrong foods, and too much or too little sleep can all contribute to headaches. They are not known to directly contribute to strokes, comas, or spinal cord injuries.

Question 7

When you feel a touch on your arm, the ________ in the cerebrum makes you consciously aware of that sensation.

Accepted Answer

The answer of When you feel a touch on your...

Question 8

The brain stores large amounts of information for hours, days, or years. This type of memory is called ________.

Accepted Answer

The answer of The brain stores large amounts of information...

Question 9

The area of the cerebral cortex that sends messages to the skeletal muscles in order to control voluntary movement is known as the ________.

Accepted Answer

The answer of The area of the cerebral cortex that...

Question 10

Your neighbor tried to lift a propane tank onto the back of his pickup truck and ruptured the cartilaginous disk between two of his vertebrae. What is most likely to happen to him?
A) He will have bloody stools.
B) He will suffer pain from a compressed spinal nerve.
C) He might have severe brain damage.
D) His spinal nerve cord will enlarge.

Accepted Answer

Rupturing the cartilaginous disk between two vertebrae can lead to compression of a spinal nerve, causing pain and/or numbness in the affected area. There is no direct connection between this injury and bloody stools, brain damage, or enlarging of the spinal cord.

Question 11

You are generally not aware of the texture of the cloth of your shirt as it rests on your shoulders, unless someone or something happens to make you think of it. What part of the brain is responsible for filtering out such stimuli?
A) reticular activating center
B) primary motor area
C) postcentral gyrus
D) cerebellum

Accepted Answer

The reticular activating center is responsible for filtering out insignificant stimuli, allowing the brain to focus on important information.

Question 12

Charles is comatose. What part of his brain is not working properly?
A) limbic system
B) reticular activating system
C) corpus callosum
D) amygdala

Accepted Answer

The reticular activating system (RAS) is responsible for regulating arousal and wakefulness. If it is not working properly, it can result in a comatose state.

Note: It is important to note that being comatose can also be caused by other factors such as damage to the brainstem or a metabolic disorder, not just dysfunction in the RAS.

Question 13

When our ancestors were confronted by a saber tooth tiger, the ________ nervous system was responsible for "supercharging" their escape, while the ________ nervous system returned the body systems to normal after escaping the danger.

Accepted Answer

The answer of When our ancestors were confronted by a...

Question 14

The ________ consists of myelinated axons that conduct impulses over long distances.

Accepted Answer

The answer of The ________ consists of myelinated axons that...

Question 15

Memory, emotions, and thinking about smells are all found in the ________.

Accepted Answer

The answer of Memory, emotions, and thinking about smells are...

Question 16

The ________ functions as the sensory area for touch, vision, hearing, and olfaction as well as association areas for interpreting sensations, language, thinking, decision making, self-awareness, creativity, and storing memories.

Accepted Answer

The answer of The ________ functions as the sensory area...

Question 17

If a certain water-soluble, intravenous antibiotic is not succeeding in defeating the germs inside the central nervous system, the ________ may be preventing the antibiotic from reaching the brain.

Accepted Answer

The answer of If a certain water-soluble, intravenous antibiotic is...

Question 18

A circuit of neurons that helps in the automatic response to a stimulus is a(n) ________.

Accepted Answer

The answer of A circuit of neurons that helps in...

Question 19

The thin outer layer (1 to 2 mm thick) of each hemisphere of the brain that serves to increase the surface area by being arranged in a folded manner is called the ________.

Accepted Answer

The answer of The thin outer layer (1 to 2...

Question 20

Inflammation of the protective coverings of the brain and spinal cord is known as ________.

Accepted Answer

The answer of Inflammation of the protective coverings of the...

Quiz 9: The Nervous System

Heidi injured a ventral root below her ribs. What problem will she likely experience?

As John walked outside the ballpark, a foul ball sailed over the fence and came straight at him. He saw it, and before he could think of what to do, he had reflexively jumped out of the way. What part of the brain saved John from a nasty bump?