Blood from the left side of the body is also making its way to the lower lobe of the lung from this route. The inferior vena cava is the largest vein in the body. This vein will dump us into the right atrium of the heart. Look! I can already see the heart.
4. Identify each of the following in a lymph node: afferent lymphatic vessels and efferent vessels. a. afferent lymphatic vessels b. efferent lymphatic vessels c. What is the function of the macrophages within the lymph nodes? The macrophages within the lymph nodes filter lymph and remove bacteria and cellular debris before lymph is returned to the blood. d. Identify spleen functions.
1. Cardiovascular System is a complex network of the heart, blood vessels and blood. Its job is to deliver nutrients to the human body and remove excretory products from the body parts, it’s also protects the human body against infections, distribution of heat. At the centre of the cardiovascular system is the heart, a four chambered pump that dispenses blood to the arteries. The arteries carry nutrients and oxygenated blood to the body’s tissues.
The wave passes to the atrioventricular node where it is passed down the septum down specialised fibres known as the bundle of His. This occurs after a short delay to allow all the blood to flow from the atria to the ventricles. This wave passes down the bundle of His to the Apex of the heart where the Ventricles contract upward, pumping blood out of the ventricles into the pulmonary artery and aorta through the semilunar valves. Here the blood is then passed round the body where it
Year 10 Pre-Diploma Biology Heart Dissection Introduction This lab practical allows you to identify and compare the size, shape and tissue type of the major chambers and vessels of the heart. The goal of the lab is not just to observe anatomy, but to associate structure with function. The heart is a pump for blood that comes into the right atrium, goes out to the lungs through the right ventricle, returns through the left atrium, and leaves again through the left ventricle - a double circulation. Each chamber is separated by valves that prevent the backflow of blood. Try and figure out where the various components are, how each works, especially how the shape, composition, and even texture of each part contribute to its function.
Blood flows past the aortic semilunar valve when the contracts. A. left atrium B. right atrium C. left ventricle D. right ventricle 5. Which is true? A. The left atrium contracts before the right atrium.
It forms from the joining of the two common iliac veins about the level of the umbilicus on the right side of the fifth lumbar vertebra. On its way up to the heart, inferior vena caca collects blood from kidneys and all the organs of the abdomen, penetrates the diaphragm and drains into the right atrium (Yahoo Health, 2012). The inferior vena cava carries de-oxygenated blood from the lower part of the body to the right atrium of the heart. Blood from the right atrium then goes to the right ventricle via the tricuspid valve. From the right ventricle arises the pulmonary trunk which later divides in to the right and left pulmonary arteries.
What does the portal vein drain? It drains blood from the pancreas, spleen and digestive organs and delivers it to the liver. 18. What is the function of the dorsalis pedis artery? It functions to carry oxygenated blood from the dorsal surface of the foot.
These are the only veins which carry oxygenated blood. The Systemic Circulation: The systemic or general circulation constitutes the circulation of blood from the left ventricle through the main artery, the aorta to all the parts of the body and is again returned to the right side of the heart by the superior and inferior Venacava. Oxygenated blood leaves the left ventricle through the aorta which branches and reaches every part of the body supplying 02 and nourishment to the body tissues. Similarly the deoxygenated blood is carried through the veins which eventually forms superior and inferior Venacava and gets poured into the right artrium of the heart. Portal
The main function of red blood cell is to transport oxygen in blood to all cells of the body. Types of leukocytes are: neutrophils, eosinophils, basophils, monocytes and lymphocytes. Neutrophils: Neutrophils attack the infection before other white blood cells. They are the most numerous