ANP 1105 Lecture Notes - Lecture 6: Fetus, Cardiac Output, Trabecula

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Joanne Savory

Document Summary

Oxygen-poor blood from body tissues lungs to pick up o2 + dispel co2. Oxygenated blood from lungs body tissues to supply o2 + nutrients. Transport system pump; hollow blood vessels provide delivery routes; enclosed within mediastinum (medial cavity of thorax) Extend obliquely for 12-14 cm from 2nd rib to 5th intercostal space. Of mass on left side, right side lies on diaphragm. Broad, flat base directed towards right shoulder, apex points towards left hip. Roughens membrane surfaces, causes pericardial friction rub (creaking sound) Excess fluid that leaks into pericardial space. Treated by drawing fluid out of cavity w/ syringe. Myocardium: cardiac muscle = bulk of heart wall; circular or spiral bundles of contractile cardiac muscle cells; interlacing bundles link all parts of heart together. Fibrous cardiac skeleton: crisscrossing interlacing layer of ct; anchors cardiac muscle fibers; supports great vessels + valves; limits spread of action potentials to specific paths.