BIOL 120 Lecture Notes - Lecture 30: Dense Irregular Connective Tissue, Endomysium, Cytoplasm
Document Summary
Excitability muscle is receptive to a neurological stimulation. Contractibility as it contracts, the muscle gets shorter. Elasticity when the stimulus is removed, the muscle returns to its relaxed length. Extensibility extension; you can extend muscle beyond its relaxed length but there is a limit to that. When you add force, you can pull it a little bit extend little bit beyond relaxed length (ex: arms, legs) Has opposing sets of muscles top part of arm (biceps) gets bigger when you contract. As it shortens to bend your elbow, the opposing muscle. When you contract underlying muscles, the opposite occurs underneath extends or elongates. Functions of muscles when you are horizontal maintain it with regulatory mechanisms. As they contract, you"re moving one part of the body relative to rest. Maintain posture - whether sitting, standing; need contraction to stay in seat, even. Muscles produce heat (maintain 98. 6 degrees) till you get to this temperature & then.
