Factors affecting consumer buying behaviour. This essay has been submitted by a student. This is not an example of the work written by our professional essay writers. In the early history consumer behaviour has led to theories, research methods and background knowledge of the consumer economy and self-service concepts.
The role of calcium entry in cardiac excitation-contraction coupling was subsequently explained by the finding that calcium release from the cardiac SR, unlike that of skeletal muscle, depends on a small calcium influx across the plasma membrane in a process called âcalcium-triggered calcium releaseâ. 36 Calcium release from the cardiac SR, which causes localized âcalcium sparksâ that can be visualized when cells are injected with calcium-sensitive dyes, 37 38 is a critical ...
How does excitation-contraction coupling in a cardiac muscle cell differ from that in a skeletal and smooth muscle fiber. Cardiac--depolarization due to influx of calcium ions through voltage gated channels (L type calcium channels which are modified versions of the DHP receptors in skeletal muscle). Cardiac--instead of being open directly by voltage as in skeletal muscle, cardiac are opened by binding of trigger calcium in cytosol.