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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Components of Nervous System
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Brain and Spinal Cord
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Think and Move
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Two Main Subsystem
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Central Nervous System (CNS) Peripheral Nervous System (PNS)
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CNS and PNS
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CNS contains
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Brain and Spinal Cord
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Think and Move
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PNS contains
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All nervous tissue outside the brain and spinal cord
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Peripheral everything outside
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3 basic functions of Nervous System
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Sensory, Intergrative, and Motor
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Sensory functions does what?
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Decect stimuli
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When your eyes see something or your hands or touch a warm surface, the sensory cells, also known as Neorons, send a message straight to your brain.
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Intergrative does what?
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Analyze and store sensory info
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vis best known as the interpretation of things you have felt, tasted, and touched with your sensory cells
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Motor does what
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Responds to intergrative decision
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Once your brain has interpreted all that you have learned, either by touching, tasting, or using any other sense, then your brain sends a message through neurons to effecter cells, muscle or gland cells, which actually work to perform your requests and act upon your environment.
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Sensory (afferent) Neurons provides
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(input) information from the environment to the body
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when you touch a hot surface, a sensory neuron informs your body that the temperature near your skin is rising.
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Motor (efferent) Nerons carry
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output from the CNS to the PNS
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PNS is subdivided into
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Somatic and Automatic Nerve System
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SNS, ANS
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SNS deals with ______ movements and contains ___ muscles.
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Voluntary skeletal
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ANS deals with _______, an convey impulses CNS to ______ _______ ______, _______ _______ ________, and _________
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Smooth muscle tissue, Cardiac muscle tissue, and glands.
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Salivation, perspiration, diameter of the pupils, micturition - (the discharge of urine), and erection are also controlled by the ANS
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The Nevous system consit of two types of cells which is ______ and ___________
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Neuron and Neurogila
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Neurons usally have 3 parts
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Cell body, dendrites,and a single axon
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Dendrites
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recieving or input portion of a neuron.
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Little trees
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Axon
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An axon or nerve fiber, is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body or soma.
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long and slender
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Cell body contains a
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nucleus surrounded by the cytoplasma that includes typical organelles
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Neuroglia
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supports and protect neurons
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5 main types of Neurons are
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Astrocytes, Oligodendrocytes, mircrogila, and ependynal cells found in CNS
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