Skeletal and Muscular System (Skeleton provides multiple functions…
Skeletal and Muscular System
Skeleton provides multiple functions
EG. the spine helps us stay upright
are made in bone marrow
EG. the ribcage prot. heart and lungs
joints connect b ones for movement
skeleton is made of 200 bones.
These bones are made of minerals like calcium to keep our bones strong yet flexible
link together bones / allow the skeleton to move
so that bones don't ware of by rubbing against each other the ends of bones are covered in cartilage which is kept slippery by synovial fluid
There are to main types of joints) :- Hinge and Ball and socket having no rotation and rotation respectively
Muscles work by shortening or contracting.
Muscles are attached to bones by tendons
Muscles can pull and push
If a bone had one muscle it would only be able to either contract or relax that why we have antagonistic muscles which are muscles that work in pairs