Chapter Fourteen Flashcards
Any form of brain pathology can result in a variety of symptoms…
site and extent of pathology, age and health of patient, other health related problems
Malignant tumors
cancerous; not encapsulated, no guarantee all cells have been removed
Benign tumors
non-cancerous; encapsulated with a clear border between tumor and healthy tissue; can still be very dangerous due to growth
Mastastases
cells that are shred from a tumor and travel through the blood to other sites
Hydrocephalus
can result from “pinched off” lines for drainage of cerebral spinal fluid
Brain tumor names derive from…
the cells that produce them
Do brain tumors derive from neurons?
No because neurons do not have the ability to divide as other cells do
Glioma
derive from glia, usually fast growing and malignant
Meningioma
derive from meninges
Angioma
derive from blood vessels
Pinealoma
derives from pineal gland
Seizure disorders usually originate from..
the temporal lobe; can be caused by a variety of factors; may or may not involve full-body convulsions
Partial seizure
involve small part of the brain and derive from focus
Simple Partial Seizure
no loss of consciousness, motor, mental, and autonomic responses
complex partial seizure
same as simple partial seizure, but loss of consciousness
Generalize Seizure
involve most of the brain
Grand Mal
involve full body convulsions; may be preceded by aura; two phases- tonic and clonic
Tonic Phase
muscles contract forcefully
Clonic phase
muscles begin “jerking”; may lose consciousness for up to 15 minutes
Absence Seizures
common in children; may appear to be inattentive and occur hundreds of times daily
Blood disorders
most common problem is stroke
Hemorrhagic Stroke
bleeding from ruptured blood vessel
Obstructive Stroke
clot (thrombus) in a vessel that blocks blood flow