a. a single muscle fiber plus all of the motor neurons that innervate it b. all of the motor neurons supplying a single muscle c. *a single motor neuron plus all the muscle fibers it innervates d. a pair of antagonistic muscles e. all of the muscles that affect the movement of any given joint 2. Which of the following is NOT associated with the thin filaments in skeletal muscle: a. tropomyosin b. *titin c. actin d. troponin e. nebulin 3. What produces the
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Muscle Tissue Introduction * Motion * Results from alternating contraction (shortening) and relaxation of muscles * Skeletal system * Provides leverage and a supportive framework for this movement * Myology – study of muscles Muscle Tissue * Alternating contraction and relaxation of cells * Chemical energy changed into mechanical energy Types of Muscle Tissue * Skeletal muscle – primarily attached to bones * Striated and voluntary * Cardiac
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Epimysium- covers the entire muscle Perimysium- covers..? Endomysium- covers the individual muscle fibers Sarcomere- smallest contractile element of muscle fiber‚ extends from z-line to z-line Myofilament- responsible for contraction Striated- the color variations on the muscle fiber. Has to do with the amount of protein and the way it reflects light. Myosin- globular protein Bulb like heads come in contact with the active sites on actin Active sites are not exposed when in the resting position
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First of all we have to defreniate between the musle stenght and muscles power. Musle stenght: Muscular strength defined as the ability of a muscle /group of muscles to contract with maximal force. Muscular strength describes how strong a muscle is or how much force it can exert. Exercise professionals often measure muscular strength by determining the maximum weight a person can lift at one time. There are 2 components to gain muscles strength; 1) The neural component (short-term). 2) The hypertrophic
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sarcoplasmic hypertrophy (professional bodybuilders and endurance athletes).[citation needed] The first measurable effect is an increase in the neural drive stimulating muscle contraction. Within just a few days‚ an untrained individual can achieve measurable strength gains resulting from "learning" to use the muscle.[citation needed] As the muscle continues to receive increased demands‚ the synthetic machinery is upregulated. Although all the steps are not yet clear‚ this upregulation appears to begin with
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You are what you drive When you see different people driving different cars on the roads‚ will you give yourself a second to think whether there is something relationship between the certain cars and the drivers’ personality? There is a theory that people who drive certain cars share personality traits. Generally speaking‚ our choices may say something about our values and interests. To some extent‚ women tend to buy smaller cars and men are likely to buy larger cars. But there are many other
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Muscular & Flexibility DBA Study Guide Explain and apply the FITT and SPORT principles (Hint: Getting Started) Specificity-what stretches and workouts need to be done to increase muscular fitness and flexibility. Progression-increase how long and how many times an exercise or workout is done. Overload- Stretching and workouts until body says no (muscular exhaustion) Reversibility- continuing to do stretches and workouts to not go back to where started Tedium-switching exercises and stretches
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Muscle Tissue 1. How is muscle tissue categorized? Muscle tissue is categorized by its shape‚ the number of nuclei‚ and the mechanism of stimulation. 2. a. Click the Smooth Muscle Tissue. Identify each of the following: Nucleus----- Smooth Fiber Muscle------------------ b. Describe smooth muscle control (voluntary or involuntary). Involuntary c. Name some smooth muscle functions (click the “Tissue Locations” button). Smooth
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In the United States‚ foot fractures are a common injury in both children and adults. The fracture may occur in one of the 26 bones that help create the internal structure of the foot. A sports related injury‚ a sudden impact‚ stepping wrong on a sidewalk or dropping a heavy object on the foot are just a few of the ways a foot fracture may occur. Surgery for foot fractures may be required for more severe injuries. The associated costs are a varying factor. Under most circumstances‚ a patient’s medical
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Topic: Write a long essay about “You are what you eat”. It takes a lot of time for you to decide which kinds of food you should eat tomorrow. I think it is fair to say that what you eat affects your basic appearance‚ your well being and your future health. A good diet is central to overall good health. Food has a huge effect on your health. When it comes to a healthy diet‚ energy balance is the key to getting it right. When we eat and drink‚ we’re putting energy into our bodies. Our bodies
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