KINE 305 Lecture Notes - Lecture 5: Electrocardiography, Galvanometer
Document Summary
Circulation: pulmonary circulation: heart -> lungs -> heart, systemic circulation: heart -> body -> heart. Ecg: heart contracts through changes in [ions] across a membrane = action potentials = electric current, ecg (ekg if you"re german) records the. Action potentials of the heart using galvanometer (measures electric current) White: right wrist (one subject, 6 lead only) Brown: left ankle (one subject, 6 lead only) Ecg readout: depolarization: action potential activating muscle cells to contract, repolarization: action potential done, muscle cells are relaxed.
