Physiology 2130 Lecture Notes - Lecture 8: Skeletal Muscle, Autonomic Nervous System, Endoplasmic Reticulum
25 Dec 2016
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160 000 km of blood vessels in body. Transport oxygen and nutrients to cells of body. Heart: consists of 2 side by side pumps. Wall of right ventricle: thinner than wall of left ventricle. Left atrium/ventricle: pumps blood to rest of body. Wall of left ventricle: thicker than wall of right ventricle. Incoming blood: low in oxygen, high in co2. Pumps: blood to right ventricle through right av valve (tricuspid) Superior vena cava: delivers blood from heart to head and upper limbs to the right atrium. Pulmonary artery: directs blood leaving through right ventricle, going to lungs. Aorta: directs blood leaving through left ventricle, distributing to entire body. Left atrium: receives blood that comes from lungs. Incoming blood: rich in oxygen, low in co2. Pumps: blood to left ventricle through left av valve (bicuspid) Pulmonary artery: delivers blood to lungs for gas exchange. Left ventricle: pumps blood to aorta to distribute to the entire body.
