Exam 28: The Nervous System

Much of the thought that occurs in the thinking portion of the brain occurs in the gray outer layer called the ______________.

A number of trends have been identified that have become progressively more pronounced as nervous systems evolved greater complexity.From the list below,choose the item that is not one of these trends.

Prozac,and drugs like it,promote the reabsorption of serotonin by the presynaptic cell.

The interaction of excitatory and inhibitory effects at the cell body of a neuron is known as:

The ___________ is a cable of neurons arising from the base of the brain stem,extending downward through the vertebral column.

The drug PCP (angel dust)elicits its actions by blocking the elimination of biogenic amines from the synapse.

The ____________ is responsible for deep-seated emotions,including sex,hunger,thirst,pain,anger,and pleasure.

One hypothesis as to the cause of Alzheimer Disease maintains that an abnormal form of an internal protein forms _______________ which interfere with the normal function of the neuron.

_________ produce myelin in the peripheral nervous system,while _______ produce myelin in the central nervous system.

Acetylcholine is a neurotransmitter which forms an excitatory synapse in ____ muscle and an inhibitory synapse in _____ muscle.

______________ nerves carry impulses away from the central nervous system.

A nerve impulse is initiated when: