The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis. The circulatory system includes the lymphatic system, which circulates lymph.1 The passage of lymph for example takes much longer than that of blood.2 Blood is a fluid consisting of plasma, red blood cells, white blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all body tissues. Lymph is essentially recycled excess blood plasma after it has been filtered from the interstitial fluid (between cells) and returned to the lymphatic system. The cardiovascular (from Latin words meaning heart and vessel) system comprises the blood, heart, and blood vessels.3 The lymph, lymph nodes, and lymph vessels form the lymphatic system, which returns filtered blood plasma from the interstitial fluid (between cells) as lymph. The circulatory system of the blood is seen as having two components, a systemic circulation and a pulmonary circulation.4 While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The lymphatic system, on the other hand, is an open system providing an accessory route for excess interstitial fluid to be returned to the blood.5 The more primitive, diploblastic animal phyla lack circulatory systems.
BAN Y CƠ SỞ - CLB Y KHOA TRẺ HEART ANATOMY LECTURE PURPOSE Remember details heart anatomy HEART ANATOMY LECTURE Presentation is divide into parts: 1.Watching the video 2.Review to remember vocabulary 3.Playing games 4.Conclusion 1.POSITION sternum It lies between the lungs The apax between the fifth and sixth ribs The base of the heart lies behind the sternum and between th second and third ribs Which the heart lies is called the mediastinum 2.HEART CHAMBERS Right atrium Right ventricle Auricle of left atrium Left ventricl e Left atrium Right atrium Right pulmonar y veins REMEMBER! the pulmonary arteries contain DEOXYGENATED BLOOD (BLUE BLOOD) aorta Superior vena cava Right coronary artery Inferior vena cava Pulmonar y trunk Left pulmonary veins Left coronary artery 3.HEART VALVES Pulmonary semilunar valve Tricuspi d valve Aortic semilunar valve Bicuspid valve(mitral valve)