PSY-303 Lecture Notes - Lecture 3: Dorsal Root Of Spinal Nerve, Main Source, Cerebellum
Document Summary
Anatomical terms referring to directions: dorsal: toward the back, away from the stomach side. The top of the brain is considered dorsal: ventral: toward the stomach, away from the dorsal or back side, anterior: toward the front end, posterior: toward the rear end. A cross-section through the spinal cord: the dorsal root on each side conveys sensory information to the spinal cord; the ventral root conveys motor commands to the muscles. The autonomic nervous system: sends and receives messages to regulate the automatic behaviors of the body (heart rate, blood pressure, respiration, digestion, etc. , divided into two subsystems, the sympathetic nervous system, the parasympathetic nervous system. The hindbrain the cerebellum: structure located in the hindbrain with many deep folds, helps regulate motor movement, balance, and coordination, also important for shifting attention between auditory and visual stimuli. Both of them are responsible for vision and hearing: substantia nigra: when you learn your brain gets a giant dopamine surge.
