PSYA01H3 Chapter Notes - Chapter 3 (p.2): Inferior Colliculus, Superior Colliculus, Peripheral Nervous System
Document Summary
(3. 3) structure and organization of the nervous system. Peripheral nervous system: a division of the nervous system that transmits signals between the brain and the rest of the body and is divided into 2 subcomponents. Autonomic nervous system: the portion of the pns responsible for regulating activity of organs and glands 2 subcomponents. >> parasympathetic nervous system: helps maintain homeostatic balance in the presence of change; following sympathetic arousal, it works to return the body to a baseline, nonemergency state (basically does opp. Nerve cells in medulla connect w/ body to perform basic functions such as: regulating breathing, heart rate, sneezing, salivating. Pons contributes to general levels of wakefulness, also has role in dreaming also part of network that control balance, eye movements, and swallowing. Reticular formation: extends from medulla upwards towards midbrain influences attention and alertness, helps w/ waking up and posture.
