Brain Injuries
A Progressive degenerative brain disease.
Alzheimer's Disease
CNS develops from what tube?
The neural tube
Mixed Nerves
What uses both sensory and motor fibers?
What are Neurons?
Nerve Cells
What are the two subdivisions of motor (efferent) division?
Somatic Nervous System and Autonomic Nervous System
When nervous tissue destruction occurs in the brain and the tissue does not regenerate.
Contusion
After the CNS develops the neural tubes become what?
the brain and spinal cord
31 pairs
How many pairs are there of spinal nerves at each vertebrae?
What protects neuron cell bodies?
Satelite cells
Sympathetic
What responds to unusual stimulus and takes over to increase activities?
May compress and kill brain tissue and there is swelling from inflammatory response.
Cerebral Edema
The ventricles are filled with what kind of fluid?
Cerebrospinal fluid
Optic Nerve
What nerve is sensory for vision?
What are the two major regions of neurons?
Cell bodies and processes
Name the 3 layers of the cerebrum
Gray matter, white matter, and the basal nuclei
The result of a ruptured blood vessel supplying a region of the brain.
Cerebrovascular Accident (CVA)
The ventricles have how many chambers within the brain?
4 chambers
Efferent (motor) Nerves
What carries impulses away from the CNS?
What is abundant and has star-like cells
Astrocytes
Conduction tracts in the spinal cord
Exterior White Matter
Slight brain injury with no permanent damage.
Concussion
The opening of the neural tube becomes what?
The ventricles
Glossopharyngeal nerve
What is sensory for taste and has motor fibers to the pharynx?
What supporting cell produces myelin sheath around nerve fibers in the central nervous system?
Oligodendrocytes
These cover the spinal cord
Meninges