is the length of bones incresed as v go to space?

Question

as a person goes to space, what actually happens to his body pressure and what effect is there on his bones? are the bones incresed or decreased? if so why does it happen? wats the explanation? plz provide me....

Answer 1

Astronauts experience bone loss while weightless. The bones don't change in length, but the mass of the bone decreases because there is little or no force applied to the bone. The bones that suffer the most loss are the ones that absorb the most energy on earth while running. The calcaneous, or heel bone, looses the most mass, then the lower leg bones, upper leg bones, pelvis and vertibrae. The skull can actually gain mass! The reason that bones loose mass is because they are not absorbing energy and the body reacts by removing excess calcium from the bones. The internal parts of a bone are spongy, web like structures which align to the forces experienced by the bone. These structures are the first to be whittled away.

Hope this helps! I worked in biotechnology at NASA before I retired in 2005...

Answer 2

Our bones is increase in space
because in space is no pressure in our bones.