'Myosin molecules' diaporamas de présentation

Bio 211- Anatomy and Physiology I

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Skeletal Muscle

Skeletal Muscle. ~40-45% of BW 400+ in body Responsible for all movement and support. Composition. 75% water 20% protein 5% other: fats, CHO, high energy phosphates, urea, lactic acid, enzymes, Na+, K+, Cl-, and minerals: Ca2+, Mg, and phosphorous. Striated in Apperance.

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Muscle

Muscle. 2 / 20. Movement with muscles. movement is one of the most prominent characteristics of animal life it can be either amoeboid , or more complicated using flagella , cilia or muscles

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Heart as a pump

Heart as a pump. Cardiac cycle . Phase1. Atrial systole: AV valves open; aortic and pulmonic valves closed. Heart as a pump. Cardiac cycle . Phase2. Isvolumetric contraction: all valves closed. Heart as a pump. Cardiac cycle . Phase3. Rapid ejection: Pulmonic valves open

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Muscle contraction

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