Term
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Definition
| A condition in which individuals have an overactive memory and are able to ommit every event in their lafe starting from around age 9. |
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Term
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Definition
Traumatic or spontaneous rupture of the dura mater can lead to leakage of CFS from ear canal and nose.
- If fluid loss cannot be adequately replaced this lead to intracranial hypotension/CFS hypotension
- If insufficient CSF brain can descend through foramen magnum.
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Term
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Definition
A map of the cortex mapped by Broadmann in 1909. Divides the brian into 50 different areas based on cytoarchitecture and cell arrangement.
Still used in modern neuroscience. |
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Term
| Corpus Callosum (tough body) |
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Definition
- Connects the two hemispheres of the cortex.
- Largest white matter structure in the brain.
- Estimated to contain 200-250 million axonal projections.
- Plays a role in inter-hemispheric communication.
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Term
| Communication within the cerebrum |
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Definition
- Cerebrum: "seat of intelligence"; sensory, motor, and asssociation areas, and limbic system involved in emotional aspects of behavior.
- Gray matter: neuronal cell bodies
- White mater: In the cerebral corext there are 3 different types of tracts (axon bundles)
- Association tracts - axons conduct nerve impulses between gyri in the same hemisphere.
- Commissural tracts - axons conduct nerve impulses from gyri in one cerebral hemisphere to gyri in the other cerebral hemisphere
- Projection tracts - axons conduct nerve impulses from the cerebrum to th elower parts of the CNS (i.e. thalamus, brainstem or sprinal cord), or vice versa
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Term
| Agenesis of the Corpus Callosum |
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Definition
| Rare birth defect in fetal brain development in which indvidiuals may have delays in motor coordination, cognitive & social difficulties, vision problems, and/or hypotonia. This condition is caued by disconnected brain hemispheres (i.e. corpus callosum connects the two hemispheres) |
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