A/An __________ brain injury is caused by a blow to the head or a penetrating head injury that damages the brain.

traumatic

The term __________ describes the absence of normal sensation, especially sensitivity to pain, that is induced by the administration of an anesthetic.

anesthesia

The use of ultrasound imaging to diagnose a shift in the midline structures of the brain is known as __________ .

echoencephalography

The temporary paralysis of the seventh cranial nerve that causes paralysis only of the affected side of the face is known as __________.

Bell's palsy

An excessive fear of spiders is known as __________ .

arachnophobia

A/An __________ is a tumor of the spinal cord. This term also means an abnormal proliferation of bone marrow tissue

myelosis

The __________ nervous system prepares the body for emergencies and stress by increasing the breathing rate, heart rate, and blood flow to muscles.

sympathetic

A deep state of unconsciousness marked by the absence of spontaneous eye movements, no response to painful stimuli, and the lack of speech is known as a/an __________ .

coma

A/An __________ stroke, which is the most common type of stroke in older people, occurs when the flow of blood to the brain is blocked.

ischemic

The term __________ describes a slowly progressive decline in mental abilities, including memory, thinking, and judgment, that is often accompanied by personality changes.

dementia

A/An __________ is a state of impaired awareness in which the mind and senses are dulled to environmental stimuli.

stupor

A cerebral __________ is the bruising of brain tissue as the result of a head injury.

contusion

The condition known as __________ is an inflammation of the brain.

encephalitis

__________ disease (AD) is a group of disorders associated with degenerative changes in the brain structure.

Alzheimer's

A/An __________ is an MD who specializes in diagnosing and treating chemical dependencies, emotional problems, and mental illness.

psychiatrist

The term __________ describes the mental activities associated with thinking, learning, and memory.

cognition

A/An __________ is the congenital herniation of the meninges through a defect in the skull or spinal column.

meningocele

The condition in which excess cerebrospinal fluid accumulates in the ventricles of the brain is known as __________ .

hydrocephalus

A/An __________ is a collection of blood trapped in the tissues of the brain.

cranial hematoma

__________ disease (PD) is a chronic, degenerative central nervous disorder characterized by fine muscle tremors, rigidity, and a slow or shuffling gait.

Parkinson's