Monthly Archives: April 2014
212.WHAT IS PLASTIC SURGERY?
Most of us think of plastic surgery as the kind of operation people have when they want to straighten a nose, or otherwise change the appearance of their faces in some way.
This is really cosmetic surgery and is only a branch of plastic surgery. Today, plastic surgery includes such things as correcting some deformity that a person may have been born with; or repairing the skin after a tumor has been removed or after a person has suffered severe burns.
211.WHAT IS MALARIA?
It may be hard for us to believe, but every year more than 2,000,000 people die of malaria! It’s one of the most common diseases in the world, especially near tropical rivers and coasts. The reason it’s common in such regions is that they are the habitats of the anopheles, the mosquito which carries the germ.
The malaria germ destroys red blood cells. Each germ soon divides into several parts. These are released from the red blood cell to attack new blood cells, causing chills and fever.
210.WHAT IS FAT?
BROWN FAT
Everybody today is so weight-conscious, and so many people are on diets, that you could probably say fat is something nobody wants.
Yet fat, of course, is very necessary to the body. It accumulates in this way: At certain points, the connective-tissue cells become filled with fat. First, tiny droplets appear inside the cells. They increase in size, run together into a large drop, and finally fill the cell and swell it out like a balloon. Eventually, the cell is changed into a large drop of fat surrounded by a thin envelope of tissue.
