Cardiac Muscle Contraction. Cellular Basis of Cardiac ContractionThe Cardiac Ultracontraction A shows the branching myocytes making up the cardiac myofibers. B illustrates the critical role played by the changing [Ca2+] in the myocardial cytosol. Ca2+ ions are schematically shown as entering through the calcium channel that opens in response to the wave of depolarization that travels along the sarcolemma. These Ca2+ ions ".. 더보기 이전 1 ··· 42 43 44 45 46 47 48 ··· 59 다음
