Some improtant Facts of Human Body

Some  Facts of Human Body.

1. There are 206 bones in the Skeletal system of an adult. A new born baby has 300 bones, out of which 94 bones fuse together as it grows. 
2. Bones of hands and feet alone constitute 50% of the total bones in the human body.Bones account for about 1/5th of the body's total weight.
3. A largest bone of human body is the femur in the thigh which constitutes about 27% of a person's structure. The averge length of this bone is about 50cm.
4. The shortest bone in the human body is stapes or stirrup bone in the middle ear.
5. Skull bones are also known as cranium. There are 8 bones forming the skull. One frontal (forehead),two parietals (side of the head),one occi[etal,two temporals, one sphenoid and one ethmoid.
6. There are 27 small bones in a hand
7. There are 26 bones in a foot.
8. There are about 630 important muscles in the human body which normally accounts for 40% of the body weight.
9. Water constitute about 70% of human body tissues 
10. The normal human body temperature about 37 C or 98 F.
11. The normal body blood pressure is 120/80mm of HG.
12. In a normal healthy adult contraction and relaxation  mechanism of the ventricles results in a hear beat of about 70-72 per minute in males and 78-82 per minutes in females.