PSYCH 101 Lecture Notes - Lecture 5: Central Nervous System, Hindbrain, Brainstem
Document Summary
Sensory information from all areas of the body, below the neck, must go into the spinal cord to reach the brain (afferent function) Motor commands to all areas of the body, below the neck, must travel down the spinal cord to reach the appropriate muscle group (efferent function) Spinal re exes involve tissue damaging stimuli that cause the spinal cord to initiate a massive motor responses without brain involvement. This very important structure is protected by being encased ina series of interlocking bony structures called vertebrae. Primitive area means that a similar brains structure may be found in less developed organisms such as. Several of these primitive structures may make up the entire brain of that organism. Includes the cerebellum and two structures found in the lower part of the brainstem. The pons contains several clusters of cell bodies that contribute to the regulation of sleep and arousal.
