ANP 1105 Study Guide - Midterm Guide: Autonomic Nervous System, Cardiac Muscle, Postganglionic Nerve Fibers

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: William Staines

Document Summary

Homeostasis: introduction to the autonomic nervous system and endocrine system, define and identify the main characteristics of homeostasis. Define homeostasis and give at least 2 physiological examples. A system in which variables are regulated so that internal conditions remain stable and relatively constant. Give 3 essential components to a homeostatic control mechanism. Control center: determines set point for variable maintenance. Effectors are skeletal muscles, pathways are heavily myelinated axons, no ganglia, neurotransmitters are acetylcholine and produce movement. > effectors are smooth muscle, glands, and cardiac muscle, pathways are lightly myelinated axons, have preganglionic and postganglionic neurons, neurotransmitter is norepinephrine (adrenaline) > effectors are smooth muscle, glands, and cardiac muscle, pathways are lightly myelinated axons, no ganglia, neurotransmitter is acetylcholine. Compare the functional differences between the sympathetic and parasympathetic divisions. Keeps the body"s energy use low while regulating housekeeping activities. The constant rate of neural firing under normal conditions. # heart, smooth muscle of gi and urinary tracts.