Discuss the relationship between distribution of muscle fibre type and performance. How might exercise training modify or change a person’s fibre-type distribution? There are four different types of muscle fibres: type 1‚ type 2a‚ type 2x‚ and type 2c. “A single skeletal muscle contains fibres having different speeds of shortening and ability to generate maximal force: type 1 (slow-twitch) fibres and type 2 (fast-twitch) fibres. Type 1 fies take approximately 110 ms to reach peak tension when
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kidshealth.org/kid/htbw/muscles.html 1. What are some examples of functions of your muscles? Lifting things 2. What are muscles made of? Elastic tissue 3. What are the 3 types of muscles? Smooth cardiac and skeletal 4. What is the difference between voluntary and involuntary control of muscles? Involuntary you have control and voluntary it does it for you 5. What are smooth muscles? Where are they found? What do they do in these areas? Are they under voluntary or involuntary
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Physiology Assignment Physiology Assignment Short term responses One short term response when playing basketball is when your face starts to go red‚ this happens because the body gets too hot and it tries to cool the body down by bringing blood to the surface of the skin to let some heat out and the skin also produces sweat to let out heat‚ therefore the skin surface goes red. Another short term response to physical activity is that your breathing rate and heart rate increases‚ the reason
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Anatomy & Physiology December 16‚ 2012 Anatomy and Physiology 1 Final Exam Define/Describe the following terms as completely and detailed as you can: 1. Inflammation- Inflammation is the bulging of skin‚ organs‚ or other body parts due to fluid buildup caused an injury. The fluid rushes to the injured area and that is what makes the puffiness. 2. High Fructose Corn Syrup- (HFCS) Composed of corn and lab chemicals. HFCS is found in processed foods such as salad dressing and soda. Your body
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Physiology University of Phoenix SCI/230 7/5/2013 Instructor Nancie Harris There are currently 33 diverse species of dolphin that exist in lakes (freshwater) and oceans (saltwater) of the world. Each species of dolphin‚ whether marine or river‚ has an anatomy which allows them to thrive in certain conditions. The anatomy of the dolphin has been enhanced throughout the years in order for them to continue to adjust to their domain. This paper will break down the adaptions in the anatomy of one
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isolated frog muscle could be made to contract when the sciatic nerve was irritated with a metal object‚ conducted the first muscle experiments between 1661 and 1665. Later‚ between 1737-1798 Luigi Galvani determined that frog muscle responded to electrical currents. The kymograph‚ which was invented in the late 1840’s lead to the revolution of experimental physiology because it enabled muscle contractions to be analyzed and recorded. The muscle cell or fiber is the basic unit of a muscle. The frog gastrocnemius
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typically permits the membrane potential to reach the threshold potential at which it fires the next action potential (pacemaker potential). Thus‚ the pacemaker potential is what drives the self-generated rhythmic firing. This is known as cardiac muscle automaticity.[2] Pacemaker potentials are fired by sinoatrial node (SAN)‚ but also by the other foci. However‚ the last ones have firing frequencies slower than the SAN’s. When other foci attempt to fire at their intrinsic rate‚ they can’t because
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Self-renewal and differentiation are fundamental stem cell fate decisions‚ which are essential for normal tissue development‚ homeostasis‚ and repair actin cytoskeleton and Rho-GTPases‚ mediate downstream signal transduction Serum response factor (SRF) and yes-associated protein (YAP) are two examples of mechano-sensitive transcription factors‚ which have recently been implicated in epidermal and mesenchymal stem cell differentiation Lab notes: Passive processes: transport driven by
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BTEC Level 3 Unit 2: The Physiology of Fitness Describe the musculoskeletal and energy systems response to acute exercise. What is an acute response? An acute response is an immediate response to exercise. Acute exercise will last throughout the full length of your training session. During the training session our bodies begin to respond to the exercises we are doing and begin to feel the changes within our bodies and mind due to physical strain and stress of the physical activity in lots
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Practical Report Human Biology/Physiology Name: Student ID: Please include the recorded charts along with this report. Charts may be copied to MS Power Point. Exercise 1: The effects of nerve stimulation A. Describe briefly what you have done for this section (maximum 100 words). B. What are the observations that you have made? (maximum 150 words) The experiment was carried out by using the amplitudes as low as 0.00mA to locate the twitching. But volunteer was not able
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