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26 Cards in this Set
- Front
- Back
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Identify Three functions of the Muscular System.
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Movement of the skeleton, maintenance of the skeleton, and generation of heat.
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Where is a smooth muscle located?
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Along the wall of hollow organs, vessels, and respiratory passageways.
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What is the function of Smooth Muscles.
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To produce peristalsis; contracts and relaxes slowly, and sustain contraction.
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Where is a Cardiac Muscle located?
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The wall of the heart.
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What is the function of a cardiac muscle?
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Pump blood out of heart, self-excitatory but influenced by the nervous system and hormones.
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Where is skeletol muscles located?
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They are attached to bones.
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What are skeletol muscles used for?
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To produce movement at joints.
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Define and Explain endomysium.
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Endomysium are delicate bands of connective tissue that are interspersed among muscular fibers.
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Define and Explain perimysium.
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Perimysium is the connective tissue that surrounds and bundles muscle fibers together.
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Define and explain epimysium.
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Epimysium is the external sheath of connective tissue that surrounds a muscle.
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Define and explain tendon.
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Tendons are bands of tough, inelastic fiberous tissues that connect a msucle with its bony attachment.
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Define and Explain aponeurosis.
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Aponeurosis is a sheetlike fiberous membrane that serves as a fascia to bind muscles together or as a means of connecting muscle to bone.
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Define origin with association to muscles.
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Origin is the point of attachment of a muscle that remains relatively fixed during contraction.
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Define insertion with association to muscle.
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Assertion is the point or mode of attachment of a skeletal muscle to the bone or other body part that it moves.
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Define atrophy with association to muscle.
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Atrophy is a wasting or decrease in size of a body organ, tissue, or part owing to disease, injury, or lack of use. Atrophy is also a wasting away, deterioration, or diminution.
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Define hypertrophy with assonciation to muscle.
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Hypertrophy is a nontumorous enlargement of an organ or a tissue as a result of an increase in the size rather than the number of constituent cells.
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Define spasm with relation to muscles.
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Spasm is a sudden, involuntary contraction of a muscle group or muscle.
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Define twitch with relation to muscle.
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A sudden and involutary spasmadic muscular movement.
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Defin tetanic movement with relation to muscles.
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An abnormal condition characterized by periodic painful muscular spasms and tremors, caused by faulty calcium metabolism and associated with dimished function of the paratyroid glands.
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Define tone in relation to muscles.
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The normal state of elasticity or contraction in a resting muscle. Normal firmness of a tissue or organ.
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Define isotonic with relation to muscles.
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Isotonic is when the muscular contraction of the muscle remains under realtively constant tension while its length changes.
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Defin Isometric and its relation to muscles.
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Of or involving muscular contraction against resistance in which the length of the muscle remains the same.
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Explain prime mover.
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When natural energy is converted into work.
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Expain antagonist movement.
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When a muscle conteracts another muscle.
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Explain synergist.
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When two or muscles work together in a combined effort to have a greater outcome of strength.
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Explain fixator.
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To attach to a bone.
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