Here's what makes this common diagnostic procedure so expensive. When it comes to pricey hospital procedures, MRIs come to mind. Sure enough, according to recently released Medicare pricing data analyzed by NerdWallet Health, the average cost of an MRI in the U.S. is $2,611.
Body Functions. Body functions are the physiological or psychological functions of body systems. The body's functions are ultimately its cells' functions. Survival is the body's most important business.Survival depends on the body's maintaining or restoring homeostasis, a state of relative constancy, of its internal environment.ts major activities or functions are responding to changes in the body's environment, exchanging materials between the environment and cells, metabolizing foods, and integrating all of the body's diverse activities. The body's ability to perform many of its functions changes gradually over the years.
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function. 1  Cells are the basic structures of all living organisms. 2  Cells provide structure for the body, take in nutrients from food and carry out important functions. Cells provide structure for the body, take in nutrients from food and carry out important functions. 2  Cells group together to form tissues, which in turn group together to form organs, such as the heart and brain.