BIO210Y5 Study Guide - Midterm Guide: Atrioventricular Node, Sinoatrial Node, Pulmonary Valve
Document Summary
Right and left working at same time. Blood coming in to right artia, starts contracting opens next is av valve bewtwwen right atrium and right ventricle (tricuspid valve) diastalys. Contracting it filled with blood, pushed blood from l ventricle through aorta shut the valve (dub sound) Something not properly closing could be tricuspid or trisuspid or semilunar sound. Branching connections (intercalated discs) specialized intercellular connections (gap junctions and desmosomes) Heart has its own pacemaker potential can depolarize tissue to have ap starting and spreading through cardiac cell. Av node generates another signal that sspreads across the 2 ventricles. Sounds and valves in relation to cardiac cycle. Special locations on heart that allow ap to generate contractions in artia and ventricles by spreading from --- Represent electricity moving away and toward the electrodes. Potive charge (ions) crossing memebranes that are detected by the electrode. Electrode is recording how youre moving these electrical signals through.
