Front | Back |
Contain corticospinal, medial, and lateral pathways, conscious control, does not affects long term survival, control of skeletal muscles
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SNS.
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Subconscious instruction, controls visceral receptors, coordinates cardiovascular, respiratory, digestive, urinary, and reproductive systems
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ANS
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Part of the corticospinal pathway that provides conscious control over jaw, head, neck, facial, medial and lateral pathways divert, from the cortex to the brain stem, synapses on the motor nuclei of cranial nerves
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Corticobulbar tract
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Part of the corticospinal pathway that synapses on LMNs of anterior gray horns of the spinal cord, decussate on the lateral corticospinal tract, conscious control over skeletal muscles that move eye/face
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Lateral corticospinal tract
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Part of the corticospinal pathway that synapses on LMNs of a gray horns of spinal cord, does NOT decussate, conscious control over skeletal muscles that move eye/face/etc
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Anterior corticospinal tract
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Maps out how primary motor cortex responds point by point, cerebrospinal pathway
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Motor homoniculus
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Pathway of the SNS made up of the vestibular nuclei, superior and inferior colliculi, and reticular foramen, controls muscle tone and gross movements of neck, trunk, and upper limbs
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Medial pathway
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Recieve information from vestibulocochlear nerve, maintains posture and balance, uncrossed, descends through vestibulospinal tracts
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Vestibular nuclei
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Part of the medial pathways of SNS, located in tectum, revieve visual (s) and auditory (i) stimulations, cross then descend in tectospinal tracts, reflexive changes caused by light, movement, loud noise
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Superior and inferior colliculi
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Medial pathway in SNS, loose network of neurons throughout brain stem, no decussation, reticulospinal tracts, effects determined by region stimulated
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Reticular formation
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Pathway of SNS concerned with subconscious movement and control of distal limbs, axons of red nuclei cross and descenfd in rubrospinal tracts of spinal cord
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Rubrospinal tracts
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Adjust activities of upper motor neurons in cerebellum, stimulates ACh release, inhibits GABA release, excitatory nerons kept inactive normally. synapse on thalamic nerons -->primary motor cortex
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Basal nuclei
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Monitors position, balance, and visual information, muscle memory, least amount of motor commands, established rhythm and pattern of movement
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Cerebellum
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Integrative centers for autonomic activities are located where?
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In the hypothalamus
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Division of the ANS, fight or flight, preganglionic from thoracic and superior lumbar, synapse in ganglia near spinal cord, SHORT. metabolizes glycogen reserves for ATP.
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Sympathetic nervous system
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