PSL301H1 Lecture Notes - Lecture 3: Pulmonary Vein, Proteoglycan, Pressure Gradient

• School: UTSG
• Department: Physiology
• Course: PSL301H1
• Professor: Barbara Ballyk

Document Summary

Lecture 1 the heart: cardiac muscle; blood flow; excitation. The heart is a pump in a closed system (i. e. if you change one part of the system, something else will change too) Arteries are carry blood away from the heart and veins carry blood to the heart (think a- arteries a-way ) Coronary circulation: circulation of blood within the heart. Pulmonary circulation: circulation of blood between the heart and lungs. Systemic circulation: circulation of blood between heart and body. The heart is mostly myocardium encased in within a membrane fluid-filled sac, the pericardium. Oxygen-poor blood: venae cavae right atrium tricuspid valve right ventricle pulmonary valve pulmonary artery (trunk) lungs. Oxygen-rich blood: lungs pulmonary vein left atrium bicuspid valve left ventricle aortic valve aorta body. Atrioventricular valves connect atrium to ventricle: tricuspid on the right, bicuspid/mitral on the left. Semilunar valves connect ventricle to artery: pulmonary valve (blood from here flows to the lungs, aortic valve (not shown)