Autonomic Nervous System Eunice Lee Debora Jeong Joshua Iannotti Period 4.

Slides:



Advertisements
Similar presentations
Chapter 16 The Autonomic Nervous System
Advertisements

AUTONOMIC SYSTEM NERVOUS.
Lecture 14 & 15 Dr. Zahoor Ali Shaikh 1. Central Nervous System (CNS) – brain and spinal cord. Peripheral Nervous System (PNS) – afferent and efferent.
Anatomy and Physiology I Chapter 15 The Autonomic Nervous System and Visceral Reflexes.
Principles of Anatomy and Physiology
NERVOUS SYSTEM PERIPHERAL N.S. errything else CENTRAL N.S. brain & spinal cord SENSORY DIVISION afferent nerves MOTOR DIVISION efferent nerves SOMATIC.
Figure 15.1 The ANS and Visceral Sensory Neurons.
Somatic efferent innervation Visceral efferent innervation
Exam #2 on Thursday Bring scantron. Same format. exam #2 covers chapters exam #2 does NOT cover ANS.
Autonomic Nervous System
Figure 15.1 The ANS and Visceral Sensory Neurons.
What is the function of the nervous system? Sensory Input: action of getting information from the surrounding environment. Things are being sent to the.
An Introduction to the Nervous System The Nervous System – Includes all neural tissue in the body – Neural tissue contains two kinds of cells 1.Neurons.
The Peripheral Nervous System: Efferent Division
BY KARLA DEHARO CRISTAL MARTINEZ MAXIMILIANO NINO CENTRAL NERVOUS SYSTEM.
AUTONOMIC NERVOUS SYSTEM The ANS is part of the efferent portion of the peripheral nervous system.
THE AUTONOMIC NERVOUS SYSTEM D. C. MIKULECKY PROFESSOR OF PHYSIOLOGY.
Central Nervous System
The Autonomic Nervous System
Copyright 2010, John Wiley & Sons, Inc. Chapter 11 Autonomic Nervous System (ANS)
The Autonomic Nervous System
Pages Central Nervous System (brain and spinal cord) Peripheral Nervous System (cranial and spinal nerves) Somatic (voluntary) Autonomic (involuntary)
AUTONOMIC NERVOUS SYSTEM Parasympathetic Nervous System Sympathetic Nervous system Enteric Nervous System.
Chapter 14 Autonomic Nervous System Nerve Cells of the Enteric Plexus
Mosby items and derived items © 2007 by Mosby, Inc., an affiliate of Elsevier Inc. Pharmacology of Drugs Affecting Autonomic Nervous System.
Chapter 16 Anatomy & Physiology Seeley/Stephens/Tate Fifth Edition
The Autonomic Nervous System (ANS) Chapter 17. Autonomic Nervous System (ANS) Motor regulation of smooth muscle, cardiac muscle, glands & adipose tissue.
VISCERAL FUNCTION REGULATED BY NERVOUS SYSTEM Nervous system Ⅴ.
Nervous System and Senses. Neural Activity The Neuron Which direction does a signal travel down a neuron? What do you think a “signal” is? How do you.
ANS VS PNS Melanie Pacheco Signey Mojica Karina Benitez Valeria Valdez.
Autonomic Nervous System
1 A N S  NERVOUS SYSTEM  PNS CNS   EFFERENT AFFERENT   ANS SOMATIC  ENTERIC  PARASYMPATHETIC  SYMPATHETIC.
The Autonomic Nervous System and Visceral Sensory Neurons
Human Anatomy 5th ed Benjamin Cummings General Anatomy of the Autonomic Nervous System.
Peripheral Nervous System. Lecture Outline Peripheral Nervous System –Overview –Divisions Somatic Autonomic –Sympathetic & parasympathetic Divisions –Enteric.
Autonomic Nervous System A. Comparison of somatic and autonomic nervous systems nervous systems B. Anatomy of autonomic motor pathways 1. Overview 1. Overview.
Chapter 14. Nervous System Central Nervous System (CNS) Brain Spinal Cord Peripheral Nervous System (PNS) Motor (efferent) Autonomic (involuntary) Sympathetic.
Human Nervous System Central Nervous System (CNS) -Brain and spinal cord - interneurones Peripheral Nervous system (PNS) -Everything else (cranial and.
The Nervous System Chapter 6
Chapter 9 The Autonomic Nervous System. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Neural Control of.
Autonomic Nervous System A look at sympathetic and parasympathetic divisions, Portions of Chapter 17.
Dr/Nahla Yacout 2015/2016 Physiology 232 BMS. Is the part of the nervous system that consists of the nerves outside the brain & spinal cords It’s main.
Chapter 9 The Autonomic Nervous System Lecture PowerPoint
Autonomic Nervous System Chapter 15. Autonomic Nervous System.
Human Anatomy & Physiology, Sixth Edition Elaine N. Marieb 14 The Autonomic Nervous System.
Central Nervous System Peripheral Nervous System
PNS Efferent Division Somatic & Autonomic.
Chapter 20 The Autonomic Nervous System
Peripheral Nervous System. Cranial Nerves Olfactory: Smell Optic: Eyes Oculomotor: Eye movement (4 of 6 muscles/pupil control Trochlear: Eye movement.
THE NERVOUS SYSTEM An Introduction. Basic Functions  Sensory Input  Integration  Motor Output.
Nervous system -Divisions of the nervous system -The brain.
THE NERVOUS SYSTEM I pp
Peripheral Nervous System Sections 14 and 15 READ TONIGHT!!!
Comparison of somatic and autonomic systems Targets – Somatic = skeletal muscle – Autonomic = smooth/cardiac muscle & glands Efferent pathways – Somatic.
Nervous System. Classification Based on General Functions Nervous System Somatic Nervous System Autonomic Nervous System SympatheticParasympathetic.
The autonomic nervous system Anatomic organization of the nervous system Nervous system Central nervous system Enclosed in bony cavities (skull, vertebral.
The Autonomic Nervous System BIO 137 Anatomy & Physiology.
Chapter 18 Autonomic Nervous System
Nervous System Autonomic Nervous System
Nervous System Autonomic Nervous System
Chapter 10 Nervous System.
The Autonomic Nervous System
PART 5 THE Autonomic Nervous system
Nervous System.
The Autonomic Nervous System (ANS) Chapter 17
Chapter 16 The Autonomic Nervous System
The Autonomic Nervous System
Autonomic Nervous System
The Autonomic Nervous System
The Nervous System The body’s nervous system is divided into two parts: Central Nervous System Peripheral Nervous System.
Presentation transcript:

Autonomic Nervous System Eunice Lee Debora Jeong Joshua Iannotti Period 4

Organization of Nervous System

Central Nervous System  1. Brain  A) Forebrain  (1) Sensory info (receive/process)  (2) Thinking, perceiving, producing  B) Brainstem  (1) Hindbrain  Balance  equilibrium  (2) Midbrain  Auditory and visual responses  Motor functions  2. Spinal Cord  A) connects brain to peripheral nervous system

Peripheral Nervous System  1. Sensory Nervous System  A) sends info to CNS  i.e. when someone pokes your finger  2. Motor Nervous System  A) sends info from CNS  i.e. when you want to lift your finger  B) Autonomic vs. Somatic  (1) Somatic:  1. voluntary motor  2. skeletal muscles  (2) Autonomic:  1. involuntary motor  2. smooth and cardiac muscles  3. Parasympathetic vs. Sympathetic

Reflex Arc  Definition: a neural pathway that controls a reflex  i.e. jolting backward when touching something hot

TWO types of Reflex Arc  1. Autonomic Reflex  Affects inner organs (visceral= deep)  Triggered by visceral afferent signaling  Sensory neuron -> connecting neuron -> motor neuron  i.e. peristalsis, sweating  2. Somatic Reflex  Affects muscles  Starts with force acting onto a surface  i.e. hammer on patella  Then energy is received and sensory neuron senses force  Then sends signal to motor neuron which sends a signal to the brain to jerk the knee

 AutonomicSomatic

Autonomic: Sympathetic vs Parasympathetic

Body PartSympatheticParasympathetic EyeDilatesConstricts HeartRate increasesRate decreases BladderRelaxesContracts Salivary GlandsStops productionIncreases production LungsDilate bronchiolesConstrict bronchioles LiverRelease glucoseN/A Adrenal GlandSecrete epinephrine/ norepinephrine N/A Intestines/ StomachDecreases activities of muscles and glands Increases gland secretions, motility KidneyVasoconstriction/ decreased urine output N/A GenitalsEjaculationErection Arrector pili MuscleContractRelax GallbladderRelaxesContracts

Ultimate Outcome for each System: Autonomic vs. Somatic  Autonomic:  Maintaining homeostasis:  Control glands  Control smooth and cardiac muscle  Somatic:  Self-Preservation:  Control skeletal muscles

Ganglionic Fibers  Axons sent into nerves  Synapse with neurons in ganglia first  PREGANGLIONIC FIBERS ARE…  POSTGANGLIONIC FIBERS ARE…

Sympathetic System  Preganglionic fibers -Reach spine and leave spine (rami) -Synapse in sympathetic ganglia -Shorter  Postganglionic fibers -Extend from sympathetic ganglia -Longer

Parasympathetic System  Preganglionic fibers -Carried by vagus nerves -From brain and spinal chord  ganglia -Longer -Myelinated  Postganglionic fibers -Continue from ganglia  organs -Shorter -Unmyelinated

Sympathetic Neurotransmitters  Preganglionic fibers secrete AcH (Acetylcholine)  Cholinergic  Postganglionic fibers secrete NE (Norepinephrine)  Andrenergic

Parasympathetic Neurotransmitters  Preganglionic fibers secrete AcH  Postganglionic fibers secrete AcH and Nitric Oxide

RECEPTORS  Nicotine AcH Receptor -Strong Muscle contractions -Both sympathetic and parasympathetic  Adrenergic Receptors -Postganglionic neurons -Just sympathetic  Muscarinic AcH Receptors -Receives AcH -Weak Muscle contractions -Just Parasympathetic

Termination of Receptors  AcHe (Acetylcholinesterase) breaks down AcH  NE is removed  NE has prolonged effect

Bibliography  r/Pharm_PNS_new.pdf r/Pharm_PNS_new.pdf  4/ans.htm 4/ans.htm   Receptors-and-the-autonomic-nervous-system/ Receptors-and-the-autonomic-nervous-system/