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25 Cards in this Set
- Front
- Back
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Cerebrum |
Layers of the cerebrum |
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Gray matter |
Outer layer in the cerebral cortex composed mostly of neuron cell bodies |
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White matter |
Fiber tracts deep to the gray matter |
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Corpus callosum |
Connects hemisphere |
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Basal nuclei |
Islands of gray matter buried within the white matter di |
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Diencephalon |
Sits on top of the brain stem |
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Diencephalon |
Enclosed by the cerebral hemisphere |
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Made of 3 parts |
Thalamus Hypothalamus Epithalamis |
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Thalamus |
Surrounds the ventricles |
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Function |
Relay station for the sensory pulses |
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Transfers impulses to the correct part of the cortex for localization and interpretation |
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Patellar |
Reflex is an example of two neuron reflex arc |
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Resting neuron |
Plasma membrane at rest is polarized |
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Depolarization |
Stimulus depolarize the neurons membrane |
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Nerve impulses |
Repolarization |
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Reflex |
Rapid predictable and involuntary response to a stimulus |
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Somatic reflex |
Activation of skeletal muscle |
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Autonomic reflexes |
Smooth muscles regulation |
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Sensory neurons |
Carry impulses from the sensory receptors to CNS |
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Irritability |
Ability to respond to stimulus |
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Conductivity |
Ability to transmit an impulses |
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Proprioceptor |
Detect stretch or tension |
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Motor neurons |
Carry impulses from the central nervous system to viscera glands |
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Multipolar neuron |
Many extensions from the cell body |
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Bipolar neurons |
One axon & one dendrite |
