all of them, muscles can only contract and relax
Skeletal muscles work in pair because of the limitation that these muscles can only contract or pull and can only move in one direction.
Yes, muscles can only shorten and relax. They can only pull.
Skeletal muscles work in pairs because muscles can only contract (pull) and cannot expand (push). Thus, if you want to move one direction, you use one set of muscles and to move in the opposite direction you use the corresponding set of muscles.skeletal muscles work in pairs because muscles can only contract (pull) and cannot expand (push).Skeletal muscles will have a flexor and an extensor.The flexor bends the joint.The extensor straightens it out again.Skeletal muscles work in pairs because muscles can only contract (pull) and cannot expand (push). Thus, if you want to move one direction, you use one set of muscles and to move in the opposite direction you use the corresponding set of muscles.
Muscles never "push"; they can only "pull".The only power that muscles have is to contract or relax. When they contract, they pull. Most bones have two or more sets of muscles, and each muscle pulls in one direction; in sets, the muscles can work together or oppose each other, which account for all the actions that an animal or person can perform.
Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.
No. Muscles only pull (contract) and relax.
Muscles only pull. EXAMPLE: Biceps pull to close space between upper arm and forearm. Then the triceps pull to open the area again.
No
ussually, one muscle in the pair bends part of the body.the other muscle straightens part of the body.
Brain control the muscles through nerves. Your muscles are like rubber bands only more stronger. muscles only pull and not push they pull from counter directions in a front to back way. your brain tells on of the muscles to pull and the other to not.
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
No, muscles can't push! They can only pull. http://www.eslteachersboard.com/cgi-bin/motivation/index.pl?page=5;read=356