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 […]
Once, the Country Mouse invited his cousin who lived in the city to visit him. When he came, the Country Mouse heartily welcomed his brother. For lunch the Country Mouse served wheat stalks, roots and corns with a small amount of cold water for drink. The Town Mouse did not like all this, so he
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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
Once upon a time, the three little pigs went to a city in search of their livelihood. First of all, they decided to make their own houses to live in. The first little pig saw a man carrying straw. He demanded the straw from the man and made his house easily and quickly. The second
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
Once upon a time, there was a prince who wanted to marry a princess, but a real princess. He travelled all over the world with the old queen, but nowhere could he find what he wanted. Many princesses from across the world came for the prince, but whether they were real princesses or not, it
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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
Once upon a time, a king ruled over a large kingdom. He was fascinated with new clothes and modern fashion. One day, two fraudulent weavers came to the king’s minister and claimed, “We can weave a marvellous fabric from which we can make marvellous clothes.” They asserted in front of the king, “Such clothes cannot
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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.
An old woman had seven children. One day, she made a big pancake. The children said, “We want that big pancake.” The pancake heard the children. It said, “The children shall not eat me.” And it rolled away. The old woman with seven children ran after it. The old woman said, “Stop pancake! My children
Once, there was a little red hen which lived alone in the woods. Just above the rocks, therelived a sly and crafty old fox with his mother. The sly fox would plan and plan how to lay his hands on the little red hen and make her his meal. After a lot of thinking an
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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