Homeostasis http://physicianjobster.com/wp-content/uploads/2010/01/Homeostasis-Diagram-of-Insulin-and-Glucagon-in-Controlling-Blood-Glucose.jpg Topic 6 Homeostasis and negative feedback At the end of this topic you should be able to : Define homeostasis Explain why homeostasis is important in living organisms Explain the importance of a constant core temperature in relation to enzyme activity Explain the importance of maintaining constant blood pH in relation to enzyme activity
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Energy for performance year 11 phys ed term 3 – touch football Health – related * Aerobic capacity * Muscular strength * Muscular endurance * Flexibility * Body compisistion Sport/skill related * Muscular power * Agility * Speed * Balance * Coordination Aerobic capacity * Also called stamina‚ general endurance‚ heart-lung fitness * “The ability to keep producing energy aerobically and using it to perform tasks involving the whole body for extended
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Diseases of the Muscular System There are over 650 muscles in the human muscular system. Each muscle has a specific role to perform. These muscles help us talk‚ walk‚ sit‚ run‚ eat‚ move about‚ hold things‚ and most important the continuous pumping of the heart muscles keeps us alive. Muscular system diseases cause many problems in the human body‚ that affects the mobility and functioning of various parts of the body. The list is very long as there are number of disorders that affect the human body
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Muscular endurance is very important for people playing sports and who have to sustain an activity for long periods of time. Muscular endurance is determined by how well your slow twitch muscle fibers are developed. In case your wondering what slow twitch muscle fibers are‚ I will explain. There are generally two types of muscle fibers in your body‚ slow twitch and fast twitch. Slow twitch muscle fibers cannot exert as much force as fast twitch‚ but can sustain an effort over a much greater period
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Name: ______________________________________ Date: ________________________ 1.3.1.2 - Human Homeostasis Vocabulary: dehydration-lack of water needed in your body Heat stroke-highest body temperature where you need medical attention Homeostasis- when an organism maintains stable internal conditions in a changing environment Hypothermia-lowest body temperature where you need medical attention Involuntary-automatic occurance Thermoregulation -the process in which a steady temperature is
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The Muscular System: Contraction of Motor Units 1. Define a motor neuron:_____A single nerve cell that branches from the brain or the spinal cord to a muscle or a gland. 2. Define a motor unit: ___A motor neuron and all of the muscle fibers it stimulates. 3. The synapse between a motor neuron and the muscle it innervates is called a ____neuromuscular junction_______. 4. The stimulation of additional motor units will increase the strength of the contraction. This process is called
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Homeostasis is defined as “the maintenance of a constant internal environment‚ within narrow limits‚ despite changes in the external environment.” It is why animals are able to survive in such a vast range of environments. For their bodily cells are able to sustain their function despite change‚ thus‚ enabling the animal to increase the survival of their species. Homeostasis is done through a specific set of receptors‚ effectors and an overall control system‚ which ensures the body sustains healthy
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Exercise on Homeostasis Hypothesis: If a human being walks up and down a set of stairs for eight minutes with a set rest every two minutes‚ the body will present such changes as heart and breathing rates‚ perspiration level‚ body color and temperature because of the response of the body to change whilst exercising. Discussion Questions 1. What are the changes you observed in body color and perspiration level in response to? How do these changes contribute to the maintenance of homeostasis? The
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skeletal system is divided into 2 divisions : the AXIAL SKELETON and the APPENDICULAR SKELETON. the axial skeleton consists of your SKULL‚ HYOID BONE‚ and VERTEBRAL COLUMN. and then your APPENDICULAR SKELETON consists of your SHOULDER GIRDLE‚ UPPER EXTREMITIES‚ and LOWER EXTREMITIES. your skull is the superior portion of your axial skeleton‚ wherein you can find your frontal bone‚ that forms the anterior third of your cranial dome‚ parrietal bone‚ that forms the middle segment of the cranial dome
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vascular injury. Pain‚ pallor‚ pulseless (distal to fracture site)‚ paresthesia‚ and paralysis (Hockenberry‚ & Wilson‚ 2014). II. Which diagnostic studies are most useful for assessing skeletal trauma? Initially‚ x-ray imaging is one of most useful diagnostic imaging to assess skeletal trauma. Based on the impression from the x-ray report‚ an MRI or a non-contrast CT scan may also be useful to assess trauma (Hockenberry‚ & Wilson‚ 2014). III. What are the goals of fracture management
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