Exam 38: The Nervous System

A person you know has been in an automobile accident. The accident caused a dramatic personality change. Before the accident, he was industrious and well liked; after the accident, he is profane, impetuous, and incapable of working toward a goal. Which portion of the brain was most likely damaged?

The summation of postsynaptic potentials determines the activity of the neuron. True or False?

People with multiple sclerosis develop areas in which the myelin sheath on their neurons has disintegrated. This disease often results in paralysis and extreme weakness. Using what you know about the myelin sheath, explain why these symptoms might occur.

________ is the trend toward the formation of a distinct brain that controls most of the nervous system activity in the body.

A good meal and a pleasant evening relaxing in front of the fire trigger the parasympathetic nervous system. True or False?

How are the sympathetic and parasympathetic nervous systems similar?

The place where a neuron communicates with a muscle fiber, a gland, or another neuron is called the:

What happens when a neuron reaches the threshold for an action potential?

A person who is unable to speak after a stroke has had damage to what part of the brain?

The neurotransmitter most associated with emotion and reward is ________.

At a synapse, neurotransmitters that open channels that make postsynaptic neurons more negative produce ________ postsynaptic potentials.

The ion concentrations in a resting membrane potential are maintained by Na+-K+ pumps. True or False?

Which stimulus would the body perceive as the strongest?

Which neurotransmitter is important in forming memories?

Which of the following is the path a nerve impulse travels within a single neuron?

After an accident, a professional musician has difficulty comprehending what is said and cannot associate any of the instruments he has played with the sounds they make. What part of his brain is most likely damaged?

-Section A of the spinal cord contains:

What is the main purpose of cerebrospinal fluid?

Section B contains:

Which of these parts of the brain is involved in interpreting sensory information?