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The function of the retractor muscle in bulls is to form a sigmoid flexure (s-shaped curve) in the penis in order to hold it inside the sheath when not erect.
to move
Circular muscles help in extension and narrowing of the body of the earthworm. When circular muscles contract the protractor muscles relax causing the retractor muscles to contract, thus withdrawing the setae.
Jan Mikulicz-Radecki invented the deaver retractor. The deaver retractor is a medical device that was invented in the year of 1904.
The muscle tissue's main function is to contract.
A volkman retractor is a type of tissue retractor used during ceritan surgeries to separate incised tissues. Google images it for pictures.
it is a self retaining retractor, which is used to retract wound edges.
attachements of muscle to muscle
the muscle are to move the bone.
muscle tissue
to complete the function commanded by the brain
involuntary muscle movements