HTHSCI 1CC6 Lecture Notes - Lecture 30: Sliding Filament Theory, Sarcomere, Cardiac Muscle
25 Oct 2018
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Cardiac muscle: is striated and contracts via the sliding filament mechanism. Contraction ends when the cross bridges become inactive: in a relaxed muscle fiber the actin and myosin only overlap at the end of the a bands. However it is supplied with autonomic nerve fibers that may alter its basic rhythm. Nb: troponins are normally undetectable in healthy patients, but in the case of cardiac injury the troponin molecules in the cytosol of the cardiac muscle diffuse across the sarcolemma into. Distributing prohibited | downloaded by arsen terzian (arsen98@gmail. com) lomoar cpsd|2151316 the surrounding lymphatics and blood vessels becoming detectable in blood. Can be detected 6-12 hours after onset and peak at 24hours, with a gradual decline over several days. Structure and function of blood vessels: there are three major types of blood vessels, arteries, capillaries, and veins. All blood vessels (except for the very smallest) have three distinct layers. (layers are inner most to outer most)
