Biology 2601A/B Lecture Notes - Lecture 23: Myocyte, Mechanical Advantage, Heavy Object
18 Dec 2015
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Maximum performance flying, running, and swimming speeds. Hard to measure maximum performance in animals, they don"t co- Maximum forces fighting, pushing, pulling and punching. Alexander measured a per unit force (force/body weight) as size increases in an animal, the relative force will decline (force per unit area of muscle) Force output = forcein x ma (mechanical advantage) Finput = s (stress) x a (pi2theta) In order to modify the force of the muscle it needs to be attached to the skeleton (exoskeleton) when attached it modifies the force of the skeleton by its lever system. Direct trade off between force and speed. If you were take a muscle, attach to a bunch of muscle tendons and take out a muscle fibre by teasing it down, you extract the smallest unit (myofibril) smallest unit of muscle contractions. Along the length of the myofibril has these sacromeres these are the. The reason why muscles have these banding patterns.
