Myocardial contractility - Wikipedia
Myocardial contractility represents the innate ability of the heart muscle (cardiac muscle or myocardium) to contract. It is the maximum attainable value for the force of contraction of a …
Physiology, Cardiac Muscle - StatPearls - NCBI Bookshelf
2023年7月30日 · The primary function of cardiac muscle is to pump blood into circulation by generating sufficient force. The mechanism behind each coordinated contraction involves the …
Myocardial Contractility: Historical and Contemporary …
Myocardial contraction is mechanically manifested as the force and velocity generated during sarcomere shortening. It occurs when Ca +2 binds to troponin-C and reconfigures tropomyosin …
17.3A: Mechanism and Contraction Events of Cardiac Muscle Fibers
The actual mechanical contraction response in cardiac muscle occurs via the sliding filament model of contraction. In the sliding filament model, myosin filaments slide along actin filaments …
Contraction of Cardiac Muscle - Pathway - TeachMePhysiology
2024年2月4日 · Like skeletal muscle, cardiac myocytes contract according to the sliding filament theory of muscle contraction. In this article, we will look at the process of calcium-induced …
Understanding Cardiac Contraction and Heartbeat Phases
2024年10月22日 · Explore the intricate processes of cardiac contraction and heartbeat phases, focusing on electrical impulses, calcium ions, and myocardial mechanics. The heart’s rhythmic …
Regulation of Cardiac Contractility - NCBI Bookshelf
introduction: contractility and the integrative biology of the myocardium. contractility in the modern context; control of cardiac contractility is critical to the matching of cardiac output to venous …
Myocardial Mechanics: Structure and Function of Myocardial Fibers
The orientation of myocardial muscle fibers results in longitudinal, radial and circumferential shortening (contraction). Longitudinal, radial and circumferential shortening occur …
Regulation of myocardial contraction as revealed by intracellular …
2024年2月21日 · Of the ions involved in myocardial function, Ca 2+ is the most important. Ca 2+ is crucial to the process that allows myocardium to repeatedly contract and relax in a well …
Myocardial contraction-relaxation coupling | American Journal of ...
2010年12月1日 · In this review lecture, I will revisit the contractile properties of cardiac muscle, focusing on relaxation, and how these properties are governed, using recent studies from my …