PSYCH 101 Lecture Notes - Lecture 7: Parasympathetic Nervous System, Sympathetic Nervous System, Somatic Nervous System
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Psych 101 lecture 7 brain and behavior: nervous system and. Somatic nervous system: carries input from sense organs to the brain (input); from brain/spinal cord to the skeletal muscles (output) Autonomic nervous system: controls body"s vital/automatic activities and the functioning of the internal system. Sympathetic nervous system: responds to emergencies by activating bodily resources. Parasympathetic nervous system: control normal body operations; calms the body down after an emergency. Spinal cord: nerve fibers that transmit info from sense organs, muscles, and glands to the brain, and from the brain to the rest of the body. Reticular formation: controls arousal and attention, and screens messages entering the brain; runs along the entire brain stem. Medulla: controls heart rate, breathing, blood pressure, coughing, and swallowing. Pons: important in muscle control, sleep regulation, and other vital functions: bridge between hindbrain and midbrain. Cerebellum: controls motor coordination, maintains posture, and plays a role in basic learning and memory.
