Chapter 12 - Diseases of the Nervous System
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What do the ventricles in the brain produce?
Cerebrospinal Fluid
Where does the CSF circulation start from?
From the two lateral ventricles through intraventricular foramina
Where does the third ventricle go through?
Cerebral aqueduct into the 4th ventricle
Where does the 4th Ventricle go through?
Through the lateral and medial apertures
The loss of cerebral control following injury; An immediate and temporary disturbance of brain functions
Concussion
A crushing compression of the brain that leads to hemorrhaging and swelling
Contusion
A cutting wound that penetrates the skull; Results in bleeding
Laceration
A hemorrhage that is due to a fracture or trauma to the head; Blood starts to pool. If unrelieved could die in days or weeks
Extradural Hemorrhage
Three Types of Intracranial Hemorrhages?
Extradural, Subdural and Subarachnoid
More severe fracture or injury in the intracranial hemorrhage; Death within a few days
Subdural hemorrhage
Most severe intracranial; Rapid bleeding in the brain; Death within hours
Subarachnoid Hemorrhage
Inflammation of the membranes of the brain or spinal cord
Meningitis
Life threatening form of meningitis that could cause epidemic meningitis
Bacterial Meningitis
Most common form of meningitis for people with impaired immune systems
Fungal Meningitis
The causes of Meningitis?
Viruses Fungi Protozoans Cancers
The main symptom of Meningitis?
Stiff neck
Temporary lack of circulation to a part of the brain; Could cause ischemia?
Transient Ischemic Attack
What is the main side effect of Transient Ischemic Attacks?
Mini Strokes
An apoplexy/ Stroke; The Sudden death of some brain cells due to lack of oxygen caused by a blockage or rupture of an artery in the brain
Cerebrovascular Accident
What does the Cerebrovascular Accident all depend on?
The size of the hemorrhage
What is the most common symptom of a Cerebrovascular Accident?
Weakness or paralysis of one side of the body with partial or complete loss of voluntary movement
Inflammation of the brain
Encephalitis
The symptoms of Encephalitis?
Swelling of the brain Fever Headache
Acute inflammation of the brain and spinal cord
Encephalomyelitis