physical or chemical agent that affects the DNA molecules of a living organism. It may arise in a variety of ways such as exposure to ultraviolet or ionizing radiation or chemical mutagens. 2. Somatic Mutation -> it is an acquired or a genetic mutation that occurs in a somatic cell after conception Somatic mutation can occur in any of the cells of the body except the germ cells and is not passed on to children. This mutation can (but do not always) cause cancer or other diseases. Gametic Mutation
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is nerve damage that can result from damage of blood vessels that feed those nerves. Diabetic neuropathy can be classified as peripheral‚ autonomic‚ proximal and focal. Each affect very different part of the body in various ways. Peripheral neuropathy‚ is the most common type‚ causing pain or loss of felling in the toes‚ feet‚ legs‚ hands‚ and arms. Autonomic neuropathy‚ causes changed in digestion‚ bowel and bladder function‚ sexual response‚ and perspiration. As well as affecting the nerves that
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anxiety disorders. The DSM-IV characterizes GAD by two main symptom clusters‚ the first of which is excessive and uncontrollable worry about a number of events and activities. The second cluster consists of six somatic symptoms (also referred to as associated symptoms in the DSM-IV)‚ the six somatic symptoms include: restlessness‚ feeling on edge‚ easily fatigued‚ difficulty concentrating irritability‚ muscle tension and sleep disturbance (Diagnostic and Statistical Manual of Mental Disorders‚ fourth edition
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PSC 101 EXAM 2 Study Guide Part 1- Sensory Systems 1. Sound can best be thought of as a) compression of air molecules by an object. b) changes in air pressure produced by the vibration of an object. c) particles of energy that travel at better than 20 miles per hour. d) packets of energy. e) expansion of air molecules produced by an object as it moves through air. 2. The loudness of a sound is related to a) the amplitude of sound vibration. b) the distance between the successive
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1/03/13 Introduction to Pharmacology II Targets of Drug Action March 5 How do drugs work? | Nearly all drugs act by interfering or inhibiting natural processes which are required for normal physiological function but which may have been disrupted by disease. | Paul Ehrlich 1845-1915 | Observed that certain chemicals or drugs bound in a selective manner to some but not all cells. He recognised that the cells must have chemical recognition sites for these drugs. The concept of a “receptor”
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The Biological Effects of Radiation Whether the source of radiation is natural or man made‚ whether it is a small dose of radiation or a large dose‚ there will be some biological effects. Radiation causes ionizations of atoms‚ which will affect molecules‚ which may affect cells‚ which may affect tissues‚ and so on. Although most people tend to think of biological effects in terms of the effect of radiation on living cells‚ in actuality‚ ionizing radiation‚ by definition‚ interacts only with
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There is a need to implement more recreational activities and exercise to the existing after-school program‚ which offers an educational enrichment program. Studies have shown that children have better academic performance when they are routinely motivated to engage in moderate-intensity aerobic exercise. Furthermore; studies have shown that “both children with ADHD and without ADHD exhibited greater response accuracy and stimulus-related processing‚ with the children with ADHD also showing selective
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degree to which the ventricular walls are stretched by the returning blood determines the stroke volume. The more blood in equals the more blood out. The autonomic nervous system regulates involuntary functions of the body‚ which includes the activity of the heart muscle‚ smooth muscles‚ muscles of the intestinal tract‚ and the glands. Autonomic nervous system has to parts the sympathetic NS which accelerates the heart rate and constricts blood vessels‚ thus raises blood pressure. The parasympathetic
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Organization of the human body Human anatomy and physiology – study of the structure and function of the human body. Anatomy- the scientific discipline that investigates the structure of the human body. Physiology – The scientific discipline that investigates the process of functions of living things. 6 Structural levels 1. Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues
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Grant Clay Period 3 10/25/08 AP Psychology Outline Chapter 10: Motivation & Emotion Red – Definition Blue - Important Points Green - Important People & Contributions 1. Motivational Theories & Concepts a. Motivation – Involves Goal-Directed Behavior b. Drive Theories i. Homeostasis – A State of Physiological Equilibrium or Stability. ii. Drive – An Internal State of Tension that Motivates an Organism to Engage in Activities that should
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