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14 Cards in this Set
- Front
- Back
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Which tracts are close to the edge and therefore vulnerable to damage?
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Medial and spinal lemnsicus tracts
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Give the 6 steps for ordinary sensation of the head via the trigeminal ganglion
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Trigeminal ganglion (primary)
GSA trigeminal nuclei (secondary) Trigmeinothalamic tracts VPM nucleus of the thalamus (tertiary) Internal capsule Primary sensory cortex |
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What is the internal capsule a part of?
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Extra- pyramidal motor system
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What is the blood supply to anterior limb of the internal capsule
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Middle cerebral artery by lateral and middle striate branches
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What is the blood supply to the posterior limb of the internal capsule?
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Anterior choroidal artery - branche of the middle cerebral artery (prone to blockage)
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In the frontal lobe, what area is at the pre- central gyrus?
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Area 4 (motor)
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In the frontal lobe, which areas are at the post central gyrus?
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Area 1,2,3
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How is the body represented at the primary motor and sensory cortexes?
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Contralateral and inverted
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Where are slowly adapting skin receptors for texture, size and shape represented on the primary sensory cortex?
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Areas 3a and 3b
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What else does area 3a represent?
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Muscle spindle fibres
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What does areas 2 represent?
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Rapidly adapting skin receptors for pressure and edges
Pain and temp |
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What do association fibres connect?
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Different areas of the cortex on the same side
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Give the 6 steps involved with perception of object in vision to the formation of speech
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1. Visual cortex (areas 17/18/19)
2. Angular gyrus 3. Wernicke's area (22) 4. Arcuate fasciculus 5. Broca's speech area (area 44) 6. Primary motory cortex (area 4) |
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Name 2 connections made within the hemispheres
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Arcuate/ unicate fasciculus
Superior/ Inferior longitudinal fasciculus |
