Human Physiology – Spring 2013 Chapter 12 Study Questions 1. Group 1 should become experts on the structure of a sarcomere. 2. Group 2 should become experts on the sliding filament theory. 3. Group 3 should become experts on the contractile cycle of skeletal muscle. 4. Group 4 should become experts on excitation-contraction coupling. 5. Group 5 should become experts on summation and tetanus. 6. Group 6 should become experts on smooth muscle contraction. 7. What are
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There are three types of muscle skeletal which are voluntary‚ smooth muscle which are involuntary and cardiac muscle. Muscle is made up of protein filaments‚ myosin and actin. These filaments slide past each other to produce a contraction which changes both the length and shape of the cell. The primary function of the muscle is to produce both movement and force. Skeletal muscle is composed of bundles of muscle fibres containing myofibrils of thick and thin filaments (myosin and actin). Skeletal
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Intro * Training the class on how to make a tasty protein shake * Main interest is working out and staying active * Before I get any further I want to list the training objectives and they are the process and ingredients used to make a shake‚ the benefits and common mistakes. * Just get a general view of the audience‚ HOW MANY HAVE TRIED WHEY OR SOY BASED PROTEIN BEFORE? AND YOUR EXPECTATIONS ON THE TASTE? * What you need to make a protein shake? Why Banana (sweet when ripe and
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Force Feeding Anorexics Force feeding anorexics is what I stand for because anorexia causes your body harm. Force feeding can help psychosocially. Doctor are obligated to keep people alive and healthy by any means necessary.(idea 1) “There is no magic cure‚ no making it all go away forever. There are only small steps upward; an easier day‚ an unexpected laugh‚ a mirror that doesn’t matter anymore.” By Laurie Anderson (goodreads 1). Anorexia causes your body harm it is detrimental. Between
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Stimulus-Dependent Lab A motor unit is a motor neuron and the muscle fiber it controls. A whole muscle is made up of hundreds of motor units that are handled by different motor neurons that react at different levels of stimulation. The electric shock acts as an action potential by changing the membrane permeability allowing the sodium and potassium ions to pass through. At different levels of stimulation the motor neurons stimulate a motor unit and the more stimulation the more motor units become
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The mythical Greek warrior‚ Achilles was extraordinarily strong‚ courageous and was said to be invincible‚ and he was‚ until an arrow pierced his Achilles tendon. The Achilles tendon stretches down the lower leg to the heel and connects the calf muscle to the heel. You can have many different injuries to this tendon‚ and one of them is the rupturing of the tendon. It is usually a distinct diagnosis‚ whether the Achilles is rupture or not. There are both surgical and non-surgical treatment options
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There are many different things that contribute to the elasticity of muscles‚ but the focus of Aboodarda and colleagues is specifically on myofascia‚ the irregular dense connective tissue that connects and encompasses every muscle and organ in the body‚ as it is the component that is thought to have responsibility for the elasticity of muscle tissues. As a response to injury‚ among other factors‚ myofascia may bond to abutting structures and contract‚ which may cause adhesions. These adhesions may
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REVIEW SHEET EXERCISE 2 Skeletal Muscle Physiology NAME: Jasmine Young LAB TIME/DATE: 1. Define each of the following terms: • motor unit - A motor unit consists of a motor neuron and all of the muscle fibers it innervates. • twitch - Skeletal Muscle twitch is the mechanical response to a single action potential. It has three phases known as the latent‚ contraction‚ and relaxation phase. • threshold - the threshold is the minimal stimulus needed to cause a depolarization of the muscle plasma membrane
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EXERCISE 2: Skeletal Muscle Physiology Student Name: ___________________________ Student ID#: _____________________ Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers
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• Type 1 - single vascular pedicle (e.g. tensor fascia latae). • Type 2 - Dominant vascular pedicle and minor vascular pedicle‚ one dominant vascular pedicle usually entering close to the origin or insertion of the muscle with additional smaller vascular pedicles entering the muscle belly (e.g. gracilis). • Type 3 - Two dominant pedicles‚ each arising from a separate regional artery (e.g. gluteus maximus). • Type 4 - Segmental vascular pedicles (e.g. Sartorius). • Type 5 - Single dominant vascular
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