ACTIVITY 6: The Skeletal Muscle Length-Tension Relationship 33. In a force-length graph‚ a. the muscle length is the independent variable. b. the amount of force generated is the dependent variable. c. both active and passive forces must be considered. d. All the above are correct. correct answer 34. According to your lab manual‚ the protein titin is the primary cause of _________ __________. Passive Force 35. In this lab simulation‚ the muscle length of _______
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Vascular Dementia Vascular dementia is a common cause of dementia in the elderly. Dementia is a condition that affects the brain and causes people to not think well or act normally. Vascular dementia is one type of dementia. It occurs when blood clots block small blood vessels in the brain and destroy brain tissue. Likely risk factors are high blood pressure and advanced age. This disease can cause stroke‚ migraine-like headaches‚ and psychiatric disturbances. SYMPTOMS Confusion. Problems
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Introduction In general‚ homeostasis is an internal‚ biochemical system that regulates the body’s internal environment. These regulations can consist of maintaining properties such as acidity and temperature. Homeostasis is most effective because it can achieve this because it is in a stable and relatively consistent conditions. In sleep-wake homeostasis‚ an internal timer generates a homeostatic sleep drive or need for sleep. The timer is quite remarkable: the longer that we have been awake and
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Lab 4: Skeletal Muscle Function Exercise 5: The Length-Tension Relationship Materials and Methods In this experiment I used a frog anesthetized with ms222. The frog’s skin is cut and removed from both the legs‚ the Achilles tendon is cut and the tendon and calf muscle are removed from the lower legs. The femur muscle is also cut. Attached to the legs are femur clamps which are connected to the transducer arm‚ stimulation electrodes are then positioned against the muscle. I plugged the output
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Homeostasis is the maintenance of the relatively constant physiological state of the internal environment‚ the biological term meaning ‘same state’‚ is the control of the body’s internal conditions despite fluctuations in the external environment. Blood glucose refers to the sugar that is transported through the bloodstream to supply energy to all the cells in our bodies. Cells in the body need glucose for respiration through mitochondria‚ which produces ATP- the energy source for all processes of
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Massage The Effects of Massage on Muscular Deterioration Massage is obviously beneficial‚ but to individuals who previously underwent vigorous exercise it is much more than noticeable. It’s almost instinct to understand that a therapeutic massage can relieve much of the tension and soreness from previous exercise‚ but how and why is massage helpful in recovery? In this essay I will be explaining the correlation between massage and its ability to relieve muscular tension and expedite muscle recovery
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Going to School with Duchenne Muscular Dystrophy Emelia O. Jeffrey Family Practice Health Care II NUR/573 November 11‚ 2014 Frances Dunniway ` Going to School with Duchenne Muscular Dystrophy Duchenne muscular dystrophy also known as DMD is a rare genetic condition that could affects all race and cultures; mostly boys. Duchenne muscular dystrophy affects 1 in 500 boys in approximation. According to muscular dystrophy association 20‚000 children are born with DMD worldwide and approximately
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Lab #3: Isotonic contraction and the effect of load on skeletal muscles Abstract The job of the motor nervous system is to control certain elements in muscles simultaneously to ultimately produce movement. Movement of the body is the result of specialized cells directly associated with skeletal muscle. Skeletal muscles are voluntary muscle and must contract before movement can occur. We know the muscle team moving the arm is formed at the biceps and triceps. Biceps can bend the elbow‚ but
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Cover Page. Mariah Williams Period 6 Spinal Muscular Atrophy. By: Mariah Williams Spinal muscular atrophy [SMA] is a disorder in which‚ you have a loss of motor neurons. Your muscle symmetry is often off. In addition‚ there is muscle weakness in your spinal cord. This occurs in a hard time sitting up and holding your head up on your own. It is just like when you are a newborn and you need a pillow to sit on the couch. A few major causes of SMA are loss of motor neuron cells or nerve cell
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Skeletal muscle moves because we want it to. It is controlled voluntarily (consciously). There is 2 types of contraction Isometric: As the muscle contracts‚ it remains the same length whilst the tension increases in an attempt to overcome the opposing force. Example: Holding a glass of water still in front of you. Isotonic: As the muscle contracts its length changes whilst the tension remains constant or develops to overcome the opposing force. Example: Lifting a glass of water to your mount and
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