The Cardiac Cycle describe the cardiac cycle, with reference to the action of the valves in the heart; explain how heart action is coordinated with reference.
Anatomy--Circulatory and Cardiovascular Systems Notes
Heart & circulatory
Animal Body Systems. 1.Range from Unicellular to Multicellular 2.Autotrophic and/or heterotrophic 3.Life-sustaining functions (energy production, waste.
Circulation and Gas Exchange. Cells exchange material with external environment. Respiration - aerobic organisms take in O 2, release CO 2. Cells produce.
Pulmonary Circulation
