Body is Yamukala gullu says elders

example: houses has walls, with pipes current wires cable wire, dranage pipes etc

similarly body also has too: blood vessels, nerves, joints, bones, legaments, tendon

Body has 206 bones 143 joints

bodys skeleton is made of skull humerus rib

hands has biceps and triceps muscle that have tendons (example like tents has string that goes on ground) connect to

Legaments: wrist has wrist bands that help tendons connect together . Even legs have tendons and legaments connected 

example: if sunday go to fruits market get bag full of fruits and its on side string gets cut off and bag turns one side

skin protects the nerves bones etc inside the body

just llike if a fruit skin is cut and it is open and rotts 

similarly the leg or skin is cut the bad germs enter and get infection

nerves and muscles are different

nerves are blood carriers 

even back disk has legaments that joins the disks so they are intact and dont dislocate

exercise builds muscle or kandarallu

So body is a combination of 

skeleton or bones sturcture with muscles with legaments(that connect muscles and dont let them loose) bones blood vessels and nerves together with skin on top form Body