Physiology 2130 Lecture Notes - Lecture 5: Endoplasmic Reticulum, T-Tubule, Myosin Head
18 Feb 2016
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Document Summary
Muscles: the biological machines that breakdown and metabolize food to perform useful work. There are over 600 body their functions are movement, heat production and body support/posture. Whole muscle bundles of fascicles groups of muscle cells (aka muscle fibres) think and thick myofilaments. Thin myofilaments mostly actin along with troponin and tropomyosin. Thick myofilmants made up of myosin. The interaction between thin and thick myofilaments result in muscle (cid:2) contractions (cid:2) perimysium (cid:2) muscle. The fascicles are surrounded by a white connective tissue called. The thin and thick myofilaments are the contractile portion of the (cid:2) (cid:2) (cid:2) (cid:2) (cid:2) the action potential is transmitted. The cell membrane of a muscle is called a sarcolemma this is where. The sarcolemma has projections called transverse tubules or t- (cid:2) tubules that conduct the action potential deep into the muscle where the contractile proteins are located.
