what is myology? The defination of myology

The study of muscles is called myology after the Greek word mys, which means “mouse.”
Muscles perform a number of functions vital to maintaining life, including

Movement: Skeletal muscles (those attached to bones) convert chemical energy into
mechanical work, producing movement ranging from finger tapping to a swift kick of a
ball by contracting, or shortening. Reflex muscle reactions protect your fingers when
you put them too close to a fire and startle you into watchfulness when an unexpected
noise sounds. Many purposeful movements require several sets, or groups, of muscles
to work in unison.

Vital functions: Without muscle activity, you die. Muscles are doing their job when
your heart beats, when your blood vessels constrict, and when your intestines squeeze
food along your digestive tract in peristalsis.

Antigravity: Perhaps that’s overstating it, but muscles do make it possible for you to
stand and move about in spite of gravity’s ceaseless pull. Did your mother tell you to
improve your posture? Just think how bad it would be without any muscles!

Heat generation: You shiver when you’re cold and stamp your feet and jog in place
when you need to warm up. That’s because chemical reactions in muscles result in
heat, helping to maintain the body’s temperature.

Keep the body together: Muscles are the warp and woof of your body’s structure,
binding one part to another.

As you may remember from studying tissues, muscle cells — called fibers — are some
of the longest in the body. Fibers are held together by connective tissue and enclosed
in a fibrous sheath called fascia. Some muscle fibers contract rapidly, whereas others
move at a leisurely pace. Generally speaking, however, the smaller the structure to be
moved, the faster the muscle action. Exercise can increase the thickness of muscle
fibers, but it doesn’t make new fibers. Skeletal muscles have a rich vascular supply
that dilates during exercise to give the working muscle the extra oxygen it needs to
keep going.

Two processes are central to muscle development in the developing embryo: myogenesis,
during which muscle tissue is formed; and morphogenesis, when the muscles form
into internal organs. By the eighth week of gestation, a fetus is capable of coordinated
movement.

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