BISC 101 Lecture Notes - Lecture 14: Pulmonary Artery, Edema, Platelet

• School: Simon Fraser University
• Department: Biological Sciences
• Course: BISC 101
• Professor: Onkar Bains

Document Summary

^ o(cid:373)e (cid:373)a(cid:373)(cid:373)als a(cid:396)e (cid:448)e(cid:396)(cid:455) la(cid:396)ge a(cid:374)i(cid:373)als sufficient blood pressure . ^in amphibians, oxygen-poor blood flows through a pulmocutaneous circuit to pick up oxygen through the lungs and skin. ^in reptiles and mammals, deoxygenated blood flows through the pulmonary circuit to pick up oxygen through the lungs. ^oxygenated blood delivers oxygen through the systemic circuit. Reptiles: tu(cid:396)tles 2 atria 1 ventricle, ^crocodiles have 2 atria and 2 ventricles. Mammals: ^ 2 atria and 2 ventricles, the left right side (cid:396)e(cid:272)ei(cid:448)es a(cid:374)d pu(cid:373)ps . ^the aorta provides blood to the heart through the coronary arteries. ^blood returns to the heart through the superior vena cava inferior vena cava. ^blood moves into the right ventricle (cid:448)ia the pulmonary artery. ^blood returns to the left atrium via the pulmonary vein which then moves into the left ventricle. Concept b: tricuspid valve , bicuspid (or mitral) valve . ^the semilunar (sl) valves : pulmonary valve , aortic valve .