Question 1

Let's say you are a doctor and one of your patients has trouble speaking. There is nothing wrong with his vocal chords, mouth, or tongue. Most likely, if there is a brain abnormality you would expect to find it in

Accepted Answer

A)  the nucleus accumbens. 
B)  Broca's area. 
C)  Wernicke's area. 
D)  the primary auditory cortex. 
E)  Wilder's area.

Question 2

Joel was in a car accident and banged his head. When the ambulance arrived at the hospital, he was unable to speak. Most likely, Joel hit an area

Accepted Answer

A)  on the parietal lobe 
B)  on the temporal lobe 
C)  on the frontal lobe 
D)  in the fusiform gyrus 
E)  on the occipital lobe

Question 3

Surrounding neurons and holding them in place is one of the functions of _.

Accepted Answer

A)  glial cells 
B)  axon terminals 
C)  axons 
D)  the myelin sheath

Question 4

The presence of many branches on the axons makes it possible for a single neuron to connect to the dendrites of as many as 50,000 other neurons. The branches on the axons are called _.

Accepted Answer

A)  axon terminals 
B)  dendrites 
C)  cell bodies 
D)  glial cells

Question 5

The unique findings of split-brain research are primarily due to the fact that:

Accepted Answer

A)  neurons from each eye's right visual field project to the left hemisphere, while neurons from each eye's left visual field project to the right hemisphere. 
B)  neurons from each eye's right visual field project to the right hemisphere, while neurons from each eye's left visual field project to the left hemisphere. 
C)  the left hemisphere processes all visual information. 
D)  the right hemisphere processes all visual information.

Question 6

A family member has started to show problems controlling his impulsive behaviour and his judgment is questionable. You suspect the onset of dementia, with brain damage in the

Accepted Answer

A)  hippocampus 
B)  prefrontal cortex 
C)  parietal association area 
D)  Broca's area 
E)  right hemisphere

Question 7

Before an action potential can begin, the neuron's membrane must

Accepted Answer

A)  become hyperpolarized. 
B)  shift from a negative voltage towards a more positive voltage. 
C)  keep the sodium ions outside the cell membrane. 
D)  interact with glial cells. 
E)  pump out the potassium ions.

Question 8

Research on gender differences in the hemispheric localization of language has revealed that:

Accepted Answer

A)  there is greater left hemisphere lateralization of language in women than in men. 
B)  men tend to use both hemispheres in a language task, while women tend to only use the left hemisphere. 
C)  there is no difference in the hemispheric lateralization of language in men and women. 
D)  there is greater left hemisphere lateralization of language in men than in women.

Question 9

The central nervous system is defined as:

Accepted Answer

A)  only the neurons in the spinal cord. 
B)  only the neurons in the brain and spinal cord. 
C)  only the neurons outside of the brain and spinal cord. 
D)  only the neurons in the brain.

Question 10

It is the activation of axons going to the motivation.
______ that is important for reward and

Accepted Answer

A)  hippocampus 
B)  nucleus accumbens 
C)  hypothalamus 
D)  limbic system

Question 11

A neuron is responsible for conveying a message from the brain to a particular muscle, such as the muscle that contracts your eyelid. This neuron would be classified as a(n):

Accepted Answer

A)  sensory neuron. 
B)  inhibitory neuron. 
C)  motor neuron. 
D)  interneuron.

Question 12

As a result of a head trauma, a man loses his ability to talk, but can still understand what people say to him. He has most likely suffered damage to which part of the brain?

Accepted Answer

A)  the amygdala 
B)  Broca's area 
C)  the cerebellum 
D)  Wernicke's area

Question 13

Ron, a middle-aged bank executive, is in excellent health. Ron jogs five miles four times a week, keeps his weight at a healthy point, and eats a well-balanced diet. He is particularly worried about the effects of aging as both his parents developed Alzheimer's disease in their later years. Recently Ron has been receiving Botox injections to reduce
The wrinkles on his forehead. Little does he know that the Botox injections he receives and the aging disease he so dreads have this same neurotransmitter in common:

Accepted Answer

A)  endorphins 
B)  dopamine 
C)  serotonin 
D)  acetylcholine

Question 14

The association areas in the cortex are where sensory information is first processed. 162)

Accepted Answer

A) True 
 B)False

Question 15

Mental imagery, the ability to understand spatial relationships, and musical and artistic abilities tend to be located:

Accepted Answer

A)  in the parietal lobe. 
B)  equally in the left and right hemispheres. 
C)  in the left hemisphere. 
D)  in the right hemisphere.

Question 16

After partying with friends one night, Angela got into her car to drive herself home. She had been drinking and was involved in a tragic accident. The doctors at the hospital kept Angela alive on life support systems until her parents arrived. They explained to Angela's grief stricken parents that this structure of the brain had been damaged and without life support she would die. This structure is the _.

Accepted Answer

A)  cerebellum 
B)  thalamus 
C)  forebrain 
D)  medulla

Question 17

At a local university the freshman hazing involved chugging bottles of vodka. When two naïve young men fell unconscious after finishing the bottles of vodka, their girlfriends rushed them to the emergency room. It seems their basic body functions had been suppressed by the alcohol and they died from heart failure. Which portion of the brain governs these vital body functions?

Accepted Answer

A)  cerebellum 
B)  medulla 
C)  motor neurons 
D)  corpus callosum

Question 18

Spinal reflexes are reflexes that:

Accepted Answer

A)  can be triggered without any involvement of the brain. 
B)  cannot be triggered without the involvement of the sympathetic nervous system. 
C)  can significantly increase reaction time. 
D)  occur when the brain senses it could be threatened or damaged.

Question 19

Psychoactive drugs act by:

Accepted Answer

A)  affecting the resting potential of the targeted neurons. 
B)  influencing the length of the refractory period for the targeted neurons. 
C)  replacing the naturally occurring neurotransmitter. 
D)  denying the naturally occurring neurotransmitter access to its receptor.

Question 20

Branchlike fibres that collect messages from adjacent neurons and pass them along to the cell body of the receiving neuron are called _.

Accepted Answer

A)  axon terminals 
B)  nodes of Ranvier 
C)  axons 
D)  dendrites

Exam 3: Biological Foundations of Behaviour