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Lecture 14
Terms, Vocabulary & Concepts
6
Anatomy
Undergraduate 3
03/06/2012

Additional Anatomy Flashcards

 


 

Cards

Term
Hyperthymesia
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.
Term
CFS Leak
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.
Term
Brodmann area
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.

Term
Corpus Callosum (tough body)
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.
Term
Communication within the cerebrum
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
Term
Agenesis of the Corpus Callosum
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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