The thoracic duct, which travels from the abdomen to the thorax is the main lymphatic duct that drains lymph into one of the large veins to the heart. The Lymph fluid is filtered through the lymph nodes before it enters the blood. (Reeder, Miller, Wilfong, Leitch & Zimmel.,
The pulmonary valve prevents the blood from flowing back into the right ventricle. The pulmonary artery carries the blood to the lungs. There the blood picks up oxygen and is returned to the left atrium of the heart by the pulmonary veins. In the next diastole period, the semilunar valves close and the atrioventricular valves open. Blood from the pulmonary veins fills the left atrium.
Systemic circuits take the oxygenated blood from the lungs to the heart. The blood travels back into the pulmonary arteries. From there the blood moves from the arteries to the left ventricle and left atrium. The blood then goes out of the aorta through the systemic veins. When it gets to the systemic capillary beds it drops off the oxygenated to the rest of the body tissues.
The right ventricle pumps the blood through the pulmonary artery to the lungs where oxygen is picked up. 4. The blood then returns to the left atrium through the pulmonary vein. 5. The left atrium pumps the blood into the left ventricle.
This path of blood from the right ventricle of the heart, through the lungs and back to left atrium of the heart is called pulmonary circulation. Then, the blood goes through the left atrioventricular (also called bicuspid or mitral) valve and into the left ventricle. The blood is then pumped through the aortic semilunar valve and into the aorta, which is the largest artery in the human body, and supplies the body with oxygen-rich blood. The arterial branches from the aorta that supply the body with this blood are part of the systemic circulation. The systemic arterial blood pressure rises and falls during each heartbeat due to the rhythmic flow of blood.
4. The blood takes up oxygen and returns to the left side of the heart. 5. The left ventricle pumps the blood to the bod through the arteries. 6.
The monocytes turn into macrophages; their job is to eat up the excess cholesterol and unblock the artery. The macrophages are unable to digest all of the cholesterol, and as a result turn in to foam cells. When many macrophages are turned into foam cells, plaque results, and protrudes into the arterial wall, restricting blood flow and raising blood pressure (“Atherosclerosis Growth Process.” 8). If the plaque becomes too large it may break, releasing plaque into the blood. This can cause a great reduction in blood flow or a clot, resulting in stroke or myocardial infarction (“Stroke Risk.” 3).
It is consider a part of the heart which is mainly responsible of pumping blood. • Endocardium. Endocardium is the last heart wall layer, simple squamous endothelium that lining the inside of the heart. The function of endocardium is to maintain blood flow due to its smoothly layer and, prevent blood sticking on the wall then forming potentially deadly blood clots. Heart wall thickness varies from part to the part and from person to person.
The veins supply the deoxygenated blood from the body to the right side of heart. Then the heart pumps it back to the lungs, where it absorbs more oxygen. Then the oxygen contained blood returns to the left side of your heart and then it pumps it out to the res... ... middle of paper ... ...ave large diameter to give least flow resistance. It has valves to prevent low pressure blood flowing backwards. Circulation of blood There are two types of circulatory systems which are pulmonary and systemic.
• Perfusion- blood flows though lungs. The Respiratory system consists of the Nose, Lungs, trachea, larynx, pharynx, bronchi and bronchioles mainly. And are divided into an upper and Lower Tract. The main functions of the respiratory system is to 1. Gas exchange 2.