BIO 121 Study Guide - Midterm Guide: Chordae Tendineae, Heart Valve, Papillary Muscle
Document Summary
Right atrium, right ventricle, left atrium, left ventricle. Systemic circuit: blood to and from all body parts. Fibrous pericardium: tough irregularly arranged connective tissue outermost portion. Serous pericardium: deep to fibrous pericardium composed of 2 layers of serosal membrane. Viscreal pericardium: lines the surface of the heart. Inferior/ superior vena cava and coronary sinuses. The chordinae tendineae attach the av valves to the papillary muscles. Right ventricle- to make sure the thin walls to expand to much when contracting. When ventricles relax av valves open and semilunar valves close. It is on the surface of the heart, it empties blood into the right atrium: label the structures discussed in questions 6-18 on figures 21. 5, 21. 7, 21. 9, 21. 10, define systole and diastole. Diastole- relaxation: describe the 6 major events in figure 21. 11. Atrial contractions begin- av node delays spread of activity to av bundle. Impulse travels along av bundle to the apex.
