Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Autonomic Nervous System
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Table of Contents 1.Objectives for this lesson 2.Definition of Autonomic Nervous System and muscles and organs involved. 3.Flow Chart of the Nervous system including Divisions of ANS. 4.Sympathetic and Parasympathetic pathways and their Effects on the organs.
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Objectives When you finish this lesson, you should be able to Define Autonomic nervous system, know the main systems involved involved Explain the Functions of the ANS and the Flow chart of the Autonomic nervous system. Identify and differentiate between the sympathetic and Parasympathetic divisions Understand the sympathetic and parasympathetic pathways, and their effect on the body systems.
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Autonomic nervous system The autonomic nervous system (ANS) or visceral nervous system is the part of the peripheral nervous system that controls homeostasis.(internal functions)
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body The main systems that are controlled by the ANS are cardiovascular, GIT respiratory. Many of the activities of the ANS are involuntary. (However, breathing, for example, can be in part consciously controlled.) Autonomic nervous system
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Autonomic nervous system The ANS is Part of the peripheral nervous system, which controls Smooth muscles, Cardiac muscles Glands
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Autonomic Nervous System Sympathetic “Fight or flight” “E” division Exercise, excitement, emergency, and embarrassment Parasympathetic “Rest and digest” “D” division Digestion, defecation, and diuresis
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body SYMPATHATIC
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body PARASYMPATHETIC
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Sympathetic “ Fight or flight” response Release adrenaline and noradrenaline Increases heart rate and blood pressure Increases blood flow to skeletal muscles Inhibits digestive functions CENTRAL NERVOUS SYSTEM Brain Spin al cord SYMPATHETIC Dilates pupil Inhibits salivation Relaxes bronchi Accelerates heartbeat Inhibits activity Stimulates glucose Secretion of adrenaline, nonadrenaline Relaxes bladder Stimulates ejaculation in male Sympathetic ganglia Salivary glands Lungs Heart Stomach Pancr eas Liver Adrenal gland Kidney
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Parasympathetic “ Rest and digest ” system Calms body to conserve and maintain energy Lowers heartbeat, breathing rate, blood pressure CENTRAL NERVOUS SYSTEM Brain PARASYMPATHETIC Spin al cord Stimulates salivation Constricts bronchi Slows heartbeat Stimulates activity Contracts bladder Stimulates erection of sex organs Stimulates gallbladder Gallbladder Contracts pupil
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body PARASYMPATHETIC DIVISION Also called CRANIO SACRAL DIVISION Fibers of parasympathetic originates from the craniosacral region of the spinal cord ANATOMY OF PARASYMPATHETIC & SYMPATHETIC DIVISION
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body ANATOMY OF PARASYMPATHETIC & SYMPATHETIC DIVISION SYMPATHETIC DIVISION Also called THORACO LUMBAR DIVISION Fibers of Sympathetic originates from the thoracolumbar region of the spinal cord
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Sympathetic Parasympathetic CNS ganglion Unmyelinated motor neuron Myelinated motor neuron effector Work antagonistically
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body Some Exercise now....
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body
Copyright © 2013 Wolters Kluwer Health | Lippincott Williams & Wilkins Taylor: Memmler’s Structure and Function of the Human Body