BIO 3303 Lecture 6: Lecture 6 - Muscle Energetics Notes
31 Jan 2018
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Figures and graphs, either fill in info or make a figure. Lengthen (lowering the table slowly using bicep) = eccentric. The more signal --> recruit more units --> more force output. One nerve will have a specific muscle fiber associated with it. Can use muscle types independently for different functions. 3 main things for energy use by a muscle: Calcium cycling, 25-30% of atp is used to get calcium out of the cell. 5mmol/l exhausted within about 10 twitches (not a lot of movement) Can increase 20fold to several hundredfold with activity. Can have different shapes depending on what the power source is. Lots of glucose --> kidney bean shaped thing. Pools are the atp just waiting to be used or waiting to make more atp. Use will determine what is used and how quickly. Provides cell with energy for instant use --> suddenly using biceps.
