Question 1

If a neuron only fires at full strength how is it possible for us to perceive the difference between a weak stimulus and a strong stimulus?

Accepted Answer

A)  It is the number of neurons firing, and their rate of fire, that determines this. 
B)  The brain must determine from other factors how strong or weak a stimulus is. 
C)  Memory of past similar stimuli determines this. 
D)  We still don't know this. It is being researched.

Question 2

The area of the brain just above the spinal cord is called the

Accepted Answer

A)  brain bulb. 
B)  amygdala. 
C)  corpus callosum. 
D)  brainstem.

Question 3

Phineas Gage changed from a polite, dependable, well-liked railroad foreman to a rude and impulsive person who could no longer plan realistically for the future. In a railroad construction accident, Gage had seriously damaged his

Accepted Answer

A)  frontal lobe. 
B)  parietal lobe. 
C)  temporal lobe. 
D)  occipital lobe.

Question 4

The association areas are areas in the cerebral cortex

Accepted Answer

A)  that control bodily processes vital to our survival. 
B)  that house our memories and are involved in thought, perception, and language. 
C)  that control voluntary movement. 
D)  where vision, hearing, touch, pressure, and temperature register in the brain.

Question 5

You see a rattlesnake and your heart rate increase, you get a dry mouth, and you sweating and trembling. Your bodily reactions are due to the

Accepted Answer

A)  sympathetic nervous system. 
B)  somatic nervous system. 
C)  parasympathetic nervous system. 
D)  reflexive nervous system.

Question 6

________ is the main inhibitory neurotransmitter in the brain.

Accepted Answer

A)  Serotonin 
B)  Norepinephrine 
C)  Acetylcholine 
D)  GABA

Question 7

What are the primary functions of the right hemisphere?

Accepted Answer

The answer of What are the primary functions of the...

Question 8

Epilepsy is

Accepted Answer

A)  a problem with understanding speech. 
B)  involved with the central hypothalamus and the occipital lobes. 
C)  almost always unnoticed by the person who is experiencing a seizure. 
D)  a disorder in which neural activity can become so heightened that seizures result.

Question 9

The association areas that store our memory of how objects feel and enable us to identify objects by touch alone are located in the

Accepted Answer

A)  occipital lobes. 
B)  parietal lobes. 
C)  temporal lobes. 
D)  frontal lobes.

Question 10

As a consequence of damage to the right motor cortex, one might expect to have

Accepted Answer

A)  some loss of feeling on the left side of the body. 
B)  some loss of coordination on the left side of the body. 
C)  some loss of feeling on the right side of the body. 
D)  some loss of coordination on the right side of the body.

Question 11

Which of the following is composed of several brain structures, including the hippocampus and the amygdala?

Accepted Answer

A)  limbic system 
B)  reticular system 
C)  peripheral system 
D)  brainstem

Question 12

The structure which controls arousal and attention and screens sensory messages entering the brain is the

Accepted Answer

A)  reticular formation. 
B)  pons. 
C)  amygdala. 
D)  hippocampus.

Question 13

The central nervous system consists of the

Accepted Answer

A)  brain and spinal cord. 
B)  autonomic system and the somatic system. 
C)  forebrain, midbrain, and hindbrain. 
D)  afferent system and efferent system.

Question 14

What are the main functions of the left hemisphere?

Accepted Answer

The answer of What are the main functions of the...

Question 15

People who have damage to their right hemispheres have trouble with spatial orientation, and even have difficulty finding their way around familiar surroundings.

Accepted Answer

A) True 
 B)False

Question 16

The left hemisphere specializes in all of the following activities except

Accepted Answer

A)  communicating emotion. 
B)  analyzing information. 
C)  reading and writing. 
D)  speech.

Question 17

The site in the cerebral cortex where hearing registers is

Accepted Answer

A)  the primary auditory cortex. 
B)  Broca's area 
C)  Wernicke's area. 
D)  the somatosensory cortex.

Question 18

The thalamus is believed to work with the pons and the reticular formation to

Accepted Answer

A)  allow us to move in a straight line. 
B)  regulate sleep cycles. 
C)  offset the influence of the brainstem. 
D)  determine body temperature.

Question 19

Compare the functions of Broca's and Wernicke's areas?

Accepted Answer

The answer of Compare the functions of Broca's and Wernicke's...

Question 20

How would your life change if you experienced brain injury or stroke in your left hemisphere? In your right hemisphere?

Accepted Answer

The answer of How would your life change if you...

Exam 2: Biology and Behaviour