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15 Cards in this Set
- Front
- Back
What are the 3 major functions of the Nervous System?
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Coordinate body functions
Maintain homeostasis Allows the body to respond |
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What does the Central Nervous System (CNS) contain?
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Brain and Spinal Chord
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What does the Peripheral Nervous System (PNS) contain?
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Peripheral Nerves
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What are the two types of functions of the peripheral nervous system?
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Somatic nervous system
autonomic nervous system |
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What does the somatic nervous system do?
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Controls skeletal muscle
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What does the autonomic nervous system do?
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controls involuntary effectors such as the heart, smooth muscle in blood vessels and glands
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What are the three general functions of the Nervous system?
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sensory, intergrative and motor
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Describe the sensory functions of the nervous system
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sensory receptors dectect internal and external changes and convert info into nerve impulse transmitted to CNS
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Describe the Integrative functions of the nervous system
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allows conscious or subconscious decisions from sensory neuron info. allows decisions that motor neurons carry out
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Describe the Motor functions of the nervous system
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carry nerve impulses from CNS to peripheral nerves to effectors (outside of nervous system) examples: muscle contraction & glands release hormone
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What do neurons transmit?
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information in the form of electrochemical changes called nerve impulses
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what are nerves?
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bundles of nerve axons
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What are neurons?
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nerve cells
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what are the functions of the neuroglial cells?
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supporting cells in the CNS
phagocytize, form myelin, produce cerebrospinal fluid |
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How are neuroglial cells different than neurons?
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they are able to divide
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