Anatomy & Physiology: Circulatory System PDF

- carry blood containing oxygen ( oxygenated blood ) EXCEPT in the pulmonary artery Anatomy & Physiology and unoxygenated blood are Circulatory System usually deeply located in the...

- carry blood containing oxygen ( oxygenated blood ) EXCEPT in the pulmonary artery Anatomy & Physiology and unoxygenated blood are Circulatory System usually deeply located in the body. Presented by: Pulsates strongly and when injured Sharewin A. Pulido, BSBio, RN, and punctured, blood spurts out. MAN Major Arteries: a. Pulmonary artery – brings Four Chambers of the HEART blood from the right ventricle to The heart has 4 chambers: the lungs for oxygenation of the - 2 atria and 2 ventricles ( right blood. and left ) uterus. a. Right atrium – receives b. Aorta – transport blood from unoxygenated blood returning to the left ventricle for distribution to the heart from the body via big arteries like: veins called Superior 1. Coronary artery – brings vena cava and the Inferior vena blood to the heart. cava and pumps blood to the right 2. Carotid artery – brings ventricle blood to the head and neck. 3. Subclavian artery – b. Right ventricle – receives brings blood to the upper limb blood from the right atrium and 4. Bronchial artery – pumps it to the lungs for brings oxygenated blood to the oxygenation via vessels called lung PULMONARY TRUNK and RIGHT and 5. Posterior Intercostal LEFT PULMONARY ARTERIES. artery – brings blood to the chest wall. c. Left Atrium – receives the 6. Celiac Artery – brings oxygenated blood from the lungs blood to the liver, gallbladder, via the RIGHT and LEFT spleen and stomach. PULMONARY VEINS and pumps it to 7. Superior Mesenteric the left ventricle. Artery – brings blood to the most of the small intestine and part of d. Left Ventricle – receives the large intestine. blood from the left atrium and 8. Inferior mesenteric pumps it to the AORTA for artery – brings blood to the most distribution to the whole body. of the large intestine. 9. Iliac Artery – brings blood to the lower limb and B. BLOOD VESSELS: internal organs of the pelvic cavity like the urinary bladder and the - blood vessels conducting blood uterus. away from the heart to the other parts of the body. c. Arterioles – small arteries within Inferior Vena Cava which carries the organs of the body. blood from body to the right d. Capillaries – the narrowest part atrium-------then flows into of the blood vascular system the-------- right ventricle through located within the tissues of the the tricuspid valve. Blood leaves body where oxygen carried by the ventricle and is pumped------into blood is unloaded to the tissue in the Pulmonary artery and then exchange for the carbon dioxide to---- lungs to give up carbon coming from the tissue. dioxide at the same time absorbs e. Venules – small veins within the oxygen------then returns to the organs of the body receiving blood heart the left atrium. from the capillary after it releases oxygen to the tissues. f. Veins - transport blood from the 2. Systemic Circulation. It is the venules back to the heart and pathway of the blood flowing from carries unoxygenated blood from the heart to all parts of the body the lungs to the left atrium of the and return to the right atrium. heart. Usually superficially located and when injured and punctured, From the left atrium, the blood flows smoothly. oxygenated blood (oxygen- rich blood) passes --------the Left Ventricle---to the--------Aorta and its MAJOR VEINS GOING TO THE various branches. Like RIGHT ATRIUM ARE: coronary artery to (heart a. Superior vena cava – transport tissue itself). ----------- blood from the heart and neck, carotid arteries (to head), upper limbs and the thorax. ---------subclavians ( arms, b. Inferior vena cava – transport iliacs to legs). During these blood from the abdomen, pelvic passages, the blood cavity and the lower limbs. distributes nutrients and c. Coronary sinus – returns blood oxygen to the body tissues from the heart tissue to the right and collects CO2. Finally, atrium. the blood goes to the right atrium for the pulmonary PATHWAYS OF CIRCULATION IN circulation. THE HUMAN BODY Pulmonary Circulation. The flow of blood from the heart to the lungs and back to the heart is known as Pulmonary circulation. ------------- Blood from the different parts of the body-------- enters the Superior Vena Cava ------ to the