Autonomic nervous system The autonomic nervous system (ANS or visceral nervous system) is the part of the peripheral nervous system that acts as a control system functioning largely below the level of consciousness‚ and controls visceral functions. The ANS affects heart rate‚ digestion‚ respiration rate‚ salivation‚ perspiration‚ diameter of the pupils‚ micturition (urination)‚ and sexual arousal. Whereas most of its actions are involuntary‚ some‚ such as breathing‚ work in tandem with the conscious
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Chapter 16 The Autonomic Nervous System Sympathetic (Thoraco-lumbar) division Parasympathetic (Cranial-sacral) division Somatic Motor vs Visceral Motor ■ ■ ■ ■ Somatic motor is directed from cortical levels to skeletal muscles and is voluntary. Visceral motor is directed from hypothalamus and midbrain and is involuntary‚ but has input from cortex and thalamus. Somatic lower motor neuron is in ventral horn of gray matter and neurotransmitter at skeletal muscle is Ach. Visceral motor comes from
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The Autonomic Nervous System I - Key 1. Damage to the autonomic motor nerves would probably result in A. no change in muscle tone. B. muscle atrophy. C. flaccid paralysis. D. increased skeletal muscle contraction. Blooms Level: 2. Understand Fox - Chapter 09 #8 Section: 9.01 Topic: Nervous System 2. Damage to the thoracic and lumbar regions of the spinal cord would cause heart rate to be chronically increased compared to normal. FALSE Blooms Level: 2. Understand Fox - Chapter 09 #42 Section: 9.02
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Difference in Somatic and Autonomic Nervous System * The somatic nervous system consists of nerves that provide VOLUNTARY control over skeletal muscles * The autonomic nervous system exerts INVOLUNTARY control over the contraction of smooth muscle‚ cardiac muscle‚ and glandular activity. * Basic function of the Sympathetic VS Parasympathetic Systems * Sympathetic system= “fight of flight” * Parasympathetic system= “rest and digest” * Both autonomic branches are required
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14: The Autonomic Nervous System Objectives Introduction 1. Define autonomic nervous system and explain its relationship to the peripheral nervous system. 2. Compare the somatic and autonomic nervous systems relative to effectors‚ efferent pathways‚ and neurotransmitters released. 3. Compare and contrast the functions of the parasympathetic and sympathetic divisions. ANS Anatomy 4. For the parasympathetic and sympathetic divisions‚ describe the site of CNS origin‚ locations of ganglia
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1 THE AUTONOMIC NERVOUS SYSTEM: UNDERSTANDING THE ESSENTIALS (v2013‚ long sheet) Lecturer: D.G. Simbulan‚ Jr.‚ PhD ----------------------------------------------------------------------------------------------------------------------------- -------------------Outline: I. Introduction II. Comparison between the somatic and autonomic nervous systems III. Anatomical and Physiological features of ANS IV. Metabolism of Neurotransmitters; Main form of removal from synaptic cleft/ junctional
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1 MSC: TYPE: Conceptual 6. Motives can take the form of a.|needs‚ drives‚ and incentives.|c.|stimuli‚ events‚ and actions.| b.|requirements‚ desires‚ and impulses.|d.|both a and b| ANS: A DIF: 2 REF: 9-188 OBJ: 1 MSC: TYPE: Factual 7. Examples of physiological needs are a.|oxygen‚ food‚ water and proper temperature.| b.|love‚ esteem and finances.| c.|waste elimination.| d.|both a and c| ANS: D DIF: 1 REF: 9-188 OBJ: 1 MSC: TYPE: Conceptual 8. Motives are believed to give rise to a
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show the difference in heart rates before and during intense exercise. Aim: The aim of the investigation was to discover how the heart rate varied with the intensity of exercise. The heart rate is a term describing the regularity of the cardiac cycle. The heart rate is the amount of times it contracts (beats) in a unit of time‚ nearly always per minute. At rest the adult female’s heart rate regulates 75 bpm (beats per minute) but this varies between people. If the heart rate is measured before‚ during
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The Effect of Position on Heart Rate This lab explores the effect of head position on an individual’s heart rate by having a subject move it’s head while simultaneously monitoring the subjects heart rate. There were three successive periods during which the heart rate was monitored that occurred in this order: a resting stage (subject sitting upright)‚ a stage with the head positioned between the knees‚ and a recovery stage (subject returns to upright position). The graph depicts a wide range
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human’s heart rate to speed up‚ decrease‚ or stay the same‚ the volume of sound has a high effect on the heart. However‚ if people will let down the volume of sound‚ others would not be mannered by the increase in volume managing to the deadly heart attack. Sound within the community‚ for instance‚ traffic can cause a human’s heart rate of increase. Problem of heartbeat tends to be solved by seeing what kind of sound causes the increase of heart rates to place a termination to increase of heart rate
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