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Bacically your protein muscles are contract with the glumise muscles they make you have lots of protein so listen to answers.com
Oxytocin.
beta blockers
it is a problem in the nervous system
When muscles contract, they shorten and generate force, allowing movement to occur. This process is controlled by the nervous system and involves the sliding of protein filaments within the muscle fibers.
Starvation (lack of protein)
Weak muscles.Protein deficiency can lead to weak muscles.
The intercostal muscles, (muscles between the ribs), contract.
auto-rhythmic cardiac muscle
This process is called contraction. Muscles shorten or contract to produce movement.
Oxitosin is the hormone. It is secreted by pituitary.
Muscles contract and relax to move a joint. ... Muscles contract at a constant rate. Muscles contract and relax to move a joint.