01:146:356 Chapter Notes - Chapter 11: Multiple System Atrophy, Anterior Grey Column, Axon Terminal
23 Mar 2016
School
Department
Course
Professor
Document Summary
Chapter 11: efferent division: autonomic and somatic motor control: autonomic division. Somatic motor neurons control skeletal muscles and autonomic neurons control smooth muscles, cardiac muscles, many glands, and some adipose tissue. Autonomic is usually known as not under voluntary control or also known as visceral nervous system o. Parasympathetic is resting and digesting functions; sympathetic is stressful functions: regulated by hypothalamus, activating one sympathetic pathway does not activate them all automatically, extreme activation of either only happens once in a while. Autonomic reflexes are important for homeostasis (endocrine and behavioral state systems) o. Sensory input goes to hypothalamic receptors to pons/medulla/hypothalamus to autonomic responses, endocrine responses, and behavioral responses. Can also go from input to somatic and visceral sensory neurons to limbic system and cerebral cortex makes behavioral response. Emotions can also influence autonomic output fainting at sight of a needle o. Exceptions: sweat glands, smooth muscles in blood vessels because they are only innervated by sympathetic branch.
