Probably because they surround the organs; like the heart for instance.
the root cage
carbonhydrates
Your organs are soft, and a hit could damage them. The skeleton provides a hard cage to surround them.
The heart is an organ; it contains no other organs within it.
pelvis
Arteries carry blood from the heart to the organs of the body.
the heart, the stomach
No. Thats the ribs.
What organs are affected by tetanus?
I believe the heart is made out of muscles
The lungs.