Diaphragm and intercostals
Veins are assisted in maintaining one way flow by the skeletal muscles' contrations. Valves also ensure one-way flow.
Skeletal muscles work in pairs: flexors and extensors
They allow your body to move.
Veins are assisted in maintaining one way flow by the skeletal muscles' contrations. Valves also ensure one-way flow.
false
False. While many skeletal muscles do work in antagonistic pairs (e.g. biceps and triceps), not all skeletal muscles function this way. Some skeletal muscles work alone or in synergy with other muscles to produce movement.
A muscle is either contracting (doing work) or relaxing (not under tension). Some muscles do not ever completely relax under normal conditions.
These muscles are called "skeletal muscles".
Your triceps and your biceps. These muscles are part of the skeletal muscle group they move by contracting and relaxing.
When a runner uses her leg muscles to run, she is primarily using skeletal muscles. Skeletal muscles are under voluntary control and are responsible for movement by contracting and relaxing. These muscles work in coordination to provide the strength and agility needed for running. In addition to skeletal muscles, some smooth muscles may be involved in regulating blood flow and digestion during exercise.
false
Muscles are attached to bones by tendons. The muscles contract to allow movement, while the skeleton gives the muscles support. The muscles and bones move together, basically with the muscles contracting and the bones allowing them to stay up. Something like that.