Anaphy Lec10

Electroencephalogram (EEG)

electrodes places on a person's scalp to record brains electrical activity; patterns can be detected as wavelike patterns known as brain waves.

(1) Alpha waves (2) Beta Waves (3) Delta waves (4) Theta waves

What are the (4) Types of Brainwave?

Alpha waves

normal person is awake but in quiet, resting state; eyes closed

Beta waves

occur during intense mental activity; have higher frequency than alpha

Delta waves

occur during sleep, in fants & payients with severe brain disorders

Theta waves

common in children, may occur in adults with frustration or certain brain disorders

Meninges

protective wrapping around the brain and spinal cord.

Ventricles

fluid-filled cavities of CNS

Cerebrospinal fluid (CSF)

bathes and provides a protective cushion around the CNS produced by choroid plexuses.

(1) Olfactory (2) Optic (3) Oculomotor (4) Trochlear (5) Trigeminal (6) Abducens (7) Facial (8) Vestibulochlear (9) Glossopharyngeal (10) Vagus (11) Accessory (12) Hypoglossal

12 Cranial Nerves

Spinal Cord Injury

is a condition of damage to spinal cord

Aphasia

damage to Wernicke and Broaa areas

Subdural Hematoma

damage to the veins

Hydrocephalus

accumulation of CSF in the ventricles due to the blockage in opening of fourth ventricle.

Stroke

known as cerebrovascular accident (CVA) that results to the death of brain tissue due to discruption of its vascular supply

Ischemic stroke

type of stroke that results when arteries supplying brain tissue are blocked

Hemorrhagic stroke

results from bleeding of arteries supplying the brain tissue