Term
| what is contraction of pupil to control light inlet? dilataion? |
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Definition
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Term
| Parasympathetic Ocular Innervation (miosis) |
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Definition
Part of accommodation of pupillary aperture
Origin- E-W nucleus. sends impulses via CN III to ciliary muscle and sphincter of iris. Inhibition of this causes mydriasis. |
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Term
| Sympathetic Ocular Innervation (mydriasis) |
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Definition
Part of accommodation of pupillary aperture
origin- upper thoracic cord.- sends impulses via superior cervical ganglion & carotid plexus to ciliary muscle and sphincter of eye. |
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Term
| spinal cords contribution to integrated motor control |
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Definition
| spinal cord- programmed local movement patterns (reflexes, complex, rhythmical motion patterns) |
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Term
| hindbrain's contribution to integrated motor control |
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Definition
hindbrain- vestibular fxn
(maintains axial tone for standing, modifies muscle tone based on vestibular input to maintain equilibirum) |
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Term
| motor cortex's contribution yo integrated motor control |
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Definition
-activates motor signals to cord
-directs signals (bypass cord when appropriate)
-enables learned muscular patterns |
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Term
| Cerebellum and basal ganglia's contribution to integrated motor control |
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Definition
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Term
| cell types of cerebral cortex |
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Definition
Granular
-interneurons
-excitatory (glutamate)
-inhibitory (GABA)
Fusiform
-smaller, source of cortical output
Pyrimidal
-larger, source of cortical output |
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Term
| What cerebral cortex layer is responsible for input? output? intercortical association? |
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Definition
input- Layer IV
output- Layer V (to cord and brainstem), layer IV (to thalamus)
Intercortical- Layer I-III |
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