2.6 Nervous System Injury and Disease Flashcards
What is a concussion?
slight injury to the brain that has mild symptoms such as dizziness and a brief loss of consciousness
Is there permanent neurological damage from a concussion?
no
What is a brain contusion?
more serious impact injury resulting in significant tissue damage and a coma
What is a hemorrhage?
you’re of a blood vessel
What is the intracranial pressure?
pressure available inside the skull
What happens to the intracranial pressure after a hemorrhage?
increases
What can happen after a hemorrhage in the brain?
increased pressure can force the brain stem down through the foramen magnum
What symptoms can result from a brain hemorrhage?
damage to the brain stem
loss of blood pressure control
loss of heart rate control
loss of respiration control
fatal
What are the two symptoms of several brain disorders?
apraxia
ataxia
What disease is characterized by a disorder of the basal ganglia?
parkinson’s disease
What is apraxia?
impaired motor planning
What does apraxia result in?
rigid movements and difficulty executing a motor plan
What is ataxia?
impaired motor coordination
What can cause ataxia?
injury to the cerebellum
What can cause apraxia?
parkinson’s disease
What is a stroke also known as?
cerebrovascular accident (CVA)
When does a CVA occur?
when blood circulation to a brain area is blocked
What happens after a stroke?
brain tissue in the area dies due to lack of oxygen and nutrients
What does the severity of the CVA depend on?
the blood vessel that was blocked
What does CT scan stand for?
computer tomography scan
