Spleen Spleen is the largest organ of adult lymphatic system, located behind the stomach, in the abdominal cavity. It resembles a lymph node, but it is larger than lymph nodes. It is made up of two types of tissues. (1) Red pulp that removes bacteria and lymphocytes (white blood cells) and macrophages. (2) White pulp […]
A lymph duct collects lymph from various tissues and then moves it to the blood vessels. There are two lymph ducts in the body: thoracic (left lymphatic duct) and right lymphatic duct. The thoracic duct moves along the abdomen to the neck. It collects lymph from the digestive tract. The right lymphatic duct (a smaller
Lymph vessels are similar in structure to the veins but they bear several valves on its surface. These valves impart a beaded appearance to the lymph vessels. They move corresponding to veins and arteries. The valves present on the lymph vessels prevent the back flow of the lymph, once the lymph has entered the main
Tonsils are the part of the immune system of the body. They constitute the first line of defence of the body. Tonsils are located at the top of the pharynx, on each side of the back of the throat. There are three pairs of tonsils: the pharyngeal, the palatine tonsils, and the lingual tonsils. The
The lymphatic system is simply referred as the drainage system of the body. It collects the excess fluid from the tissues in the body and returns it to the blood system or the central circulatory system. The lymphatic system is well equipped with vessels. It supports the immune system. The major parts of this system
Blockage of coronary arteries is also called CAD or coronary heart disease. It is the most common cause of illness and death. This disease is a group of problems that occur when the heart and blood vessels are not working the way they should. The disease occurs when our arteries become narrowed due to gradual
The human heart works like a pump, which beats about 70 times per minute in normal conditions. The heart acts as a dual pump and is comprised of two sets of chambers, two on the right side and two on the left. They are: right and left auricles and right and left ventricles. It is
Femoral Vein The femoral vein is the largest vein in the inner thighs where the leg muscles join the lower abdomen. It returns deoxygenated blood from the leg to the heart via the iliac veins. This vein is part of the femoral triangle. The femoral triangle includes the femoral vein, femoral artery and femoral nerve.
Iliac Vein The common iliac vein is the vein connected to the pelvic region and the leg. It is composed of the internal iliac vein and external iliac vein. These veins transport deoxygenated blood from the pelvic region and legs to the heart via the inferior vena cava. Artery The abdominal aorta, a major artery
Hepatic Artery The hepatic artery carries blood from the aorta and supplies oxygenated blood to the liver, pancreas and duodenum. The main function of the left and the right hepatic artery is to supply blood (oxygen and nutrients) to the liver. Portal Vein The portal vein is not a true vein as it does not
The sino-atrial node (SA node) is located in the right atrium of the heart. The other popular name of the SA node is the sinus node. It is the impulse generating tissue or precisely speaking a natural pacemaker. It generates the sound of the heart beat. The AV node (atrio-ventricular node) is located between the
Tricuspid &Biscupid Valve The tricuspid valve is the valve found between the right atrium and the right ventricle. It basically forms a boundary between the right atrium and the ventricle. It is also called right atrio-ventricular valve. On the other hand, the bicuspid valve is the valve present between the left atrium and the left
Left Ventricle The human heart has four chambers. Two lower chambers are called ventricles. The left ventricle is connected to the left atrium, on the left side of the heart. It receives blood from the left atrium and pumps it to the aorta. The main function of this ventricle is to pump the oxygenated blood
Pulmonary Artery The pulmonary artery carries deoxygenated blood from the heart to the lungs. It is one of the only arteries that carry deoxygenated blood. It is relatively short and wide in size and shape. It begins from the bottom of the right ventricle of the heart. And then separates into the right and left
Superior Vena Cava Superior vena cava is also referred as precava. It is a large vein, but short in length, located above the heart. The venae cavae are the largest veins in the body. They carry deoxygenated blood to the right atrium of the heart. There is no valve between the superior vena cava and