PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is tissue that functions in lining, covering, and glandular tissue
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Is tissue involved in protecting, supporting, and binding together other body tissues
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Is tissue that contracts and shortens to produce movement
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Tissue that receives and conducts electrochemical impulses from one part of the body to another
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Detailed explanation-1: -Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts. The tissue is highly cellular and is well supplied with blood vessels.
Detailed explanation-2: -Agonist muscles shorten with contraction to produce a movement. Following contraction, the antagonist muscle paired to the agonist muscle returns the limb to the previous position.
Detailed explanation-3: -Neural control initiates the formation of actin–myosin cross-bridges, leading to the sarcomere shortening involved in muscle contraction. These contractions extend from the muscle fiber through connective tissue to pull on bones, causing skeletal movement.
Detailed explanation-4: -Muscle contracture refers to physical shortening of muscle length, and it is often accompanied by physical shortening of other soft tissues such as fascia, nerves, blood vessels, and skin.
Detailed explanation-5: -Your muscles contain fibers called myosin. Depending on how you need to use your muscles, the myosin fibers either tighten up and shorten or loosen up and stretch out. Myosin is also responsible for muscle contractions like your heartbeat that happens at regular intervals.