quiz 12.2

axons

A nerve is a bundle of _____ carrying messages between the central nervous system and various parts of the body

true

A person with explosive disorder is prone to extreme rages.

true

The brain contains four interconnected cavities called ventricles.

arachnoid layer

Which layer of the meninges forms weblike filaments?

Parkinson's disease

Which of the following conditions is characterized by fine tremors, muscle rigidity, and a shuffling gait?

brain and spinal cord

Which of the following is one of the two main components of the central nervous system?

neuroglial cells conduct electrical impulses

Which of the following statements regarding neuroglial cells is NOT true?

gyri

Which of the following terms describes the elevated portions, or convolutions, on the surface of the cerebrum?

cerebellum

Which part of the brain coordinates voluntary body movements and maintains balance

thalamus

Which part of the brain serves as a center for relaying impulses from the eyes, ears, and skin to the cerebrum?

regional

Which type of anesthesia is also known as a nerve block?

absence seizure

Which type of seizure is also called a petit mal seizure?

nerve conduction velocity

diagnostic test measures how fast an impulse travels along a nerve

tremor

involuntary repetitive alternating movement of a part of the body

analgesic

medication to treat minor pain

myelogram

record of the spinal cord

false

sensory nerves carry commands to muscles and glands

laminectomy

surgical procedure removes part of a vertebra to relieve pressure on a spinal nerve

false

t/f: A psychologist is a physician specializing in treating mental disorders.

false

t/f: A tractotomy is a surgical procedure used to drain excess cerebrospinal fluid from the brain and shunt it toward the abdominal cavity.

paresthesia

the medical term for an abnormal sensatino such as burning or tingling

aura

unusual sensation that occurs before a seizure

subdural hematoma

collection of blood within the meninges

convulsion

alternation between involuntary muscle contractions and relaxations