physicaleducation

Cardiovascular System The circulatory system , also called the cardiovascular system or the vascular system , is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes ), oxygen , carbon dioxide , hormones , and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases , stabilize temperature and pH , and maintain homeostasis . The study of the blood flow is called hemodynamics . The study of the properties of the blood flow is called hemorheology . The circulatory system is often seen to comprise two separate systems: the cardiovascular system, which distributes blood, and the lymphatic system , which circulates lymph . [1] The passage of lymph for example takes much longer than that of blood. [2] Blood is a fluid consisting of plasma , red blood cells , white blood cells , and platelets that is circulated by the heart through the vertebrate vascular system, carrying o...

HISTORY, ORIGIN AND DEVELOPMENT OF KHO KHO HISTORY AND ORIGIN OF KHO - KHO Kho-Kho ranks as one of the most popular traditional sports in India. The origin of Kho-Kho is difficult to trace, but many historians believe, that it is a modified form of 'Run Chase', which in its simplest form involves chasing and touching a person. History of Kho-Kho in India goes back a long way, as it was first started in the state of Maharashtra. The game has been very popular in the Marathi speaking people.   With its origins in Maharashtra, Kho-Kho in ancient times, was played on 'raths' or chariots, and was known as Rathera. Like all Indian games, it is simple, inexpensive and enjoyable. It does, however, demand physical fitness, strength, speed and stamina, and a certain amount of ability. Dodging, feinting and bursts of controlled speed make this game quite thrilling. To catch by pursuit - to chase, rather than just run - is the capstone of Kho-Kho. The game develops ...