to cancel out the difference to bring it back to its normal. An example of this is if blood glucose level falls the body will then convert the glycogen in the body to glucose which will bring back the energy in the cells to its normal amount. This system requires receptors so that they are able to detect the change in your body. As well as receptors it also needs a control centre so that the information that has just been received can be processed to then give the correct response of what the body
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200. Reticular formation -Mass of neurons and nerve fibers extending from the caudal medulla to the rostral midbrain -comprises a neural system with multiple inputs and multisynaptic system of impulse conduction -one of the oldest parts of the rbain Functions : -regulating the sleep-wake cycle ‚states of consciousness -filtering incoming stimuli to discriminate irrelevant background stimuli (habitation) -Somatic motor control ( 1. ) reticulospinal tracts maintain balance
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chains or networks of neurons that link sensory receptors to muscle or glands * classified in several ways: 1. efferent division of NS that controls the response/effector a. somatic motor neurons control skeletal muscles b. autonomic neurons control smooth and cardiac muscles‚ glands‚ and adipose tissue 2. CNS location where reflex is integrated (integrating region within CNS) c. Spinal reflexes don’t require input from brain – may be modulated by higher input from
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The human brain is affected by violent video games in many ways. After so much playing the human brain believes the game is real. Video games stir up tension‚ and a feeling of fear‚ and this could have long term affects on the autonomic nerves. The autonomic nerves are connected with breathing and heart rate. If a person‚ who is playing video games‚ has suffered from seizures and continues playing‚ the chances over seizures coming back are extremely high. The video game player’s personality
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BIOLOGY 2113 Unit IV Review Guide Chapters 13-17 Chapter 13 – True or False 1. The nervous system consists of the brain‚ spinal cord‚ and nerves. 2. The afferent nervous system consists of all outgoing motor pathways. 4. Ependymal cells engulf and destroy microbes and cellular debris in inflamed or degenerating brain tissue. 5. Oligodendrocytes form myelin sheaths around nerve fibers in the CNS. 6. Nerve fibers with many Schwann cells forming a thick myelin sheath are called myelinated fibers
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NAME ________________________________________ HUMAN PHYSIOLOGY BMS 108 First Midterm – Summer 2013 DR. BARRY D. TANOWITZ 1. Put your name at the top and on your Scantron. 2. Answers for questions 1-‐ 50 will be placed on a Scantron (Green strip‚ 100 questions) – all questions 1 point each.
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A brain injury is of the most severe types of injuries that can occur as a result of an accident. There are many different symptoms that can occur as a result of a brain injury. The brain is still very much a mystery to even the most trained medical professionals. Different types of brain injuries can produce different symptoms and adult symptoms can vary from children’s symptoms. In order to get quick treatment to prevent further brain damage‚ though‚ a brain injury must be identified as soon as
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Department of Physiology PHY2021 Body Systems Physiology Activity of Gastrointestinal Smooth Muscle Worksheet Due by: Noon (12 pm) Friday April 12 Pre-prac Reading: Vander‚ 12th Edition: Section 6D.4 (pp 175-180)‚ Section 15.2 (pp 521-522)‚ Section 15.4 (pp 528-529‚ 536-538 & 542-543). INTRODUCTION Give a brief description in your own words of the objectives and aims of this practical. The aim of this practical was to discover the effects that numerous hormones
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Abnormal Behavior There are many different ways to define abnormal behavior. We will work from the definition of "behaviors and/or thoughts that are harmful to yourself or to others". What is the cause of abnormal behavior? That is not an easy question to answer. By today’s standards (and to some extent depending on the disorder)‚ we would say that it is a combination of both nature and nurture. Some would say it is because of traumatic events‚ some say it is because of learning‚ others would
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A Companion Publication to BrainFacts.org A PRIMER ON THE BRAIN AND NERVOUS SYSTEM A PRIMER ON THE BRAIN AND NERVOUS SYSTEM A companion to BrainFacts.org A PUBLIC INFORMATION INITIATIVE OF: P r e fa c e Over the past two decades‚ scientific knowledge about the structure and function of the brain and nervous system and understanding of brain-based disorders have increased exponentially. Neuroscientists are using remarkable new tools and technologies to learn how the brain controls
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