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12 Cards in this Set
- Front
- Back
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nerves
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bundles of neuron fibers that are routed together in the peripheral nervous system
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central nervous system
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brain and spinal cord
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periperhal nervous system
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made up of all those nerves that lie outside the brain and spinal cord; extends to the outside of the body; can be divided into somatic and autonomic nervous system
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somatic nervous system
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made up of nerves that connect to voluntary skeletal muscles and sensory receptors; CONTROLS BODY MUSCLES
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affervent nerve fibers
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axons that carry information INWARD to the central nervous stem from the periphery of the body; INCOMING
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effervent nerve fibers
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axons that carry information outward from the central nervous system to the periphery of the body; OUTGOING
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autonomic nervous system
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made up of nerves that connect to the heart blood vessels, smooth muscles, and glands; controls automatic, involuntary functions; can be divided into sympathetic and parasympathetic systems
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sympathetic division
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branch of the autonomic nervous system that mobilizes the body's resources for emergencies; creates fight or flight response; MOBILIZE energy; increased heart rate, dilate pupils, secretion of adrenal hormones
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parasympathetic division
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CONSERVES energy; the branch of the autonomic nervous system that generally conserves bodily resources; slow heartrate, stimulate digestion and salivation
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cerebrospinal fluid
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CSF; surrounds central nervous system; nourishes the brain and provides protective cushion; carefully filtered
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spinal cord
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connects the brain to the rest of the body through the peripheral nervous system; runs from the base of the brain to just below the waist; damage results in paralysis
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brain
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the part of the central nervous system that fills the upper portion of the skull
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