Neuro 1 - Brain stem The midbrain pons and medulla make up the brain stem Most cranial nerves are attached to the brain stem Reticular formation

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Brain stem The midbrain, pons, and medulla make up the brain stem. Most cranial nerves are attached to the brain stem. Reticular formation Four main functions of the reticular formation is regulation of respiration, regulation of swallowing, movement control, and perception/regulation of pain. Cerebellum The cerebellum contributes to the maintenance of equilibrium and coordination of motor activity by modifying cortical motor functions. Spinal cord There are 31 segments in the spinal cord; cervical (8), thoracic (12), lumbar (5), sacral (5), coccygeal (1). Cauda equina : nerve fibers that extend beyond spinal cord Foramena : opening in the spinal cord segments through which the spinal cord is suspended The lumbar cistern is a safe area to sample CSF because there is less chance of actually puncturing spinal cord. Lecture 3: White fiber tracts The three main types of white fiber tracts are: Projection neurons : transmit to cortical and subcortical areas Association neurons : connections within the same hemisphere Commissural neurons : connect with opposite hemisphere, homologous structures Ventricles Ventricles : interconnected brain cavities in which CSF is produced Four ventricles within the ventricular system are: Paired set of lateral ventricles Third ventricle Fourth ventricle The ventricles are filled with CSF. The fluid eventually passes to the subarachnoid space between the arachnoid and pia
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This note was uploaded on 05/29/2008 for the course BIOLOGY Human Neur taught by Professor Martin during the Fall '07 term at Temple.

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Neuro 1 - Brain stem The midbrain pons and medulla make up the brain stem Most cranial nerves are attached to the brain stem Reticular formation

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