BIOL 1080 Lecture Notes - Lecture 12: Pulmonary Vein, Extracellular Fluid, Circulatory System

• School: University of Guelph
• Department: Biology
• Course: BIOL 1080
• Professor: David Dyck

Document Summary

Part 1: overview (blood vessels, heart as a pump, valves, cardiac cycle, atherosclerosis) The cardiovascular system is composed of three main components: heart- muscular pump, blood vessels- conduits for blood to flow, blood- fluid that circulates through the body and carries materials between cells ex. communication. There are many affiliated organs/tissues: extracellular fluid and lymphatics, kidney (erythropoietin, filtering) and spleen (reservoir for rbc and some wbc, liver (filtering, digestion, glycogen storage, lungs (oxygenation, co2 removal, bone marrow (pool of stem cells) Deoxygenated blood returns to right side of heart (pulmonary side) Oxygenated blood leaves left side of heart (systemic side) Note the deoxygenated blood in the pulmonary artery, and the oxygenated blood in the pulmonary vein. Left side is stronger, pumps oxygenated blood to the rest of the body. Arteries carry blood away from the heart (oxygenated) but not always!