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22 Cards in this Set
- Front
- Back
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Two major functions of nervous system
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communication and control
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Structural division of nervous system
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central and peripheral
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Central Nervous system
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brain and spinal cord
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Peripheral nervous system
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nerves located outside brain and spinal cord
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Functional Divisions of nervous system
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Voluntary and Autonomic
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Voluntary Nervous system
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influences activity of voluntary(skeletal) muscles and movement throuhout the body
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Autonomic Nervous system
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automatic and influences activities of involuntary muscles and glands...partially dependent on the rest of the nervous system
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Cervical Spine
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7 vertbrae that form the neck
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Thoracic Spine
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12 vertebrae that make up the upper back
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Lumbar
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5 that make up lower back
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Sacral
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5 vertebrae that form the rigid posterior portion of the pelvis
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Coccys
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4 tailbone, lower end of spine
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Three tracts within the spinal cord
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motor, pain and light touch
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Motor tract
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Brain sends message down spinal cord to muscles
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Pain tract
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impulses are carried from pain receptors to brain
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Compression spinal injury
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weight of body is driven against the head
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Flexion spinal injury
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sever forward movement of head, chin meets chest
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extension spinal injury
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severe backward movement
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Rotation spinal injury
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lateral movement of head/spine beyond normal rotation
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Lateral bending spinal injury
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body is bent severly from the side
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Distraction spinal injury
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vertebrae and spinal cord are stretched and pulled apart (hangings)
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Penetration spinal injury
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gunshot, knife
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