Term
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Definition
| Colliculi coordinate visual and auditory reflexes. They get the eyes looking at a source of noise |
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Term
| Trochlear nerve (Cranial nerve 4) |
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Definition
• Controls superior oblique muscles of the eye
• Turns the eye in its socket
• Purely motor function
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Term
| What happen when there’s damage to the trochlear nerve? |
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Definition
• The person can’t move their eyes downwards.
• Individuals have trouble going up and down stairs
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Term
| Occulomotor nerve (Cranial nerve 3) |
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Definition
• Controls muscles of the eye
• Keeps eyelids open |
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Term
| What happens when there’s damage to the occulomotor nerve? |
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Definition
| • Eyes move outwards “Wall eyed” |
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Term
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Definition
• Part of cranial nerve 3
• Controls the iris
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Term
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Definition
| • Darkly pigmented area that controls the initiation of motor movement |
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Term
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Definition
• Caused by the death of substantia nigra cells in 90% of Parkinson’s cases
• Individual will have a resting tremor
• Difficulty initiating and controlling movement until the individual has already initiated the movement |
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Term
| What cranial nerves are located in the midbrain? |
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Definition
• Occulomotor nerve (CN 3)
• Trochlear Nerve (CN 4) |
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Term
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Definition
• Associated with corticospinal tract
• All axons from cerebral cortex must be bundled very tightly to fit in the cerebral peduncles |
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Term
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Definition
• Continuation of the reticular formation
• Lots of small unmyelinated neurons
• Largely associated with pleasure and habitual components of the forebrain
• Huge concentration of neuropeptides including endorphins and enkaphalins (associated with modulating pain)
• Also tied with learning and memory mechanisms |
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Definition
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Definition
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