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Anatomy of the Nervous system

Teacher: pat
Across
Stalk-like portion of the brain that connects the cerebral hemispheres to the spinal cord
2nd larges part of the brain coordinates motor activity and maintains balance
A wave of excitement transmitted through the nerve fibers or neurons
The innermost covering of the brain and vertebral column
Nerves that control the involuntary functions of the body
The part of the nervous system that prepares the body for emergencies or stressful situatons"fight or flight"
Chemical substances that make it possible for an impulse to jump across the synapse from one neuron to another
Sensory organs that receive external stimulation into the body
Cells within the nervous system that support and protect the neruons
Consists of the brain and spinal cord
Down
Tracts that carry nerve impulses to the brain
Part of the nervous system that returns the body to a normal state after a stressful situation Responsible for maintaining normal body functions during ordinary circumstances
Look like arms reaching out from the cell body and they receive impulses and conduct them to the cell body
A space between two neurons or between a neruon and a receptor organ.
The basic nerve cell of the nervous system
Anything that activates or excites a nerve and causes an impulse
Tracts that carry impulses away from the brain
Largest uppermost portion of the brain divided into two hemispheres
Consists of the crainal nerves, spinal nerves and connect the CNS to the rest of the body
Extends away from the cell body and conducts impulses away from the cell.
Fluid that flows hrougout the brain and spinal cord