KINE 1P90 Lecture Notes - Lecture 11: Coronary Sinus, Atrioventricular Node, Chordae Tendineae

• School: Brock University
• Department: Physical Education and Kinesiology
• Course: KINE 1P90
• Professor: Nota Klentrou

Document Summary

Blood flows from an area of high pressure to an area of low pressure. Heart changes blood pressure, based on muscle contraction. The muscle squeezes and then relaxes: that"s it! Arteries bring the blood away from the heart and veins bring blood back to the heart. If the body wants to take something from one area to another it has to go through the blood. The heart functions as a muscular pump that forces blood through the blood vessels. The blood serves as a fluid for transporting o2, nutrients, hormones, and waste products. The vessels serve to deliver the blood to all locations within the body, and to return the blood back to the heart. Located within the thorax and rests upon the diaphragm. Apex: points down and to the left. Can change the size of the heart. Does(cid:374)"t (cid:374)eed to pu(cid:373)p (cid:271)lood to the (cid:271)od(cid:455) Right and left atria (atrium): receive blood from veins.