You can pull a muscle which means it really aches but you cant push a muscle
They pull on bones by contracting.
No. Muscles only pull (contract) and relax.
not push only pull or contract
Yes, muscles can only shorten and relax. They can only pull.
If you pull or push your muscles get stretched and gives discomfort. Sometimes muscle fibres snap in which case you get a lot of discomfort
No, muscles can't push! They can only pull. http://www.eslteachersboard.com/cgi-bin/motivation/index.pl?page=5;read=356
pullThey pull on connective tissue sheaths of skeletal muscles which transmits pulling force to the bone to be move.
Because Muscles only pull not push
Your muscles pull on bones but they never push bones.
So that we can pull and push both.
Muscles contract and relax to pull/push
Muscles are like ropes in a way that muscles can only pull (contract) not push. Think of a rope you can grab the rope and pull it