Skeletal muscle contains bundles of very long, multinucleated cells with cross-striations. Their contraction is quick, forceful, and usually under voluntary control. They are found in your skeleton.
Cardiac muscle also has cross-striations and is composed of elongated, often branched cells bound to one another at structures called intercalated discs that are unique to cardiac muscle. Contraction is involuntary, vigorous, and rhythmic. They are found in your heart.
Smooth muscle consists of collections of fusiform cells that lack striations and have slow, involuntary contractions. Their location is found in your G.I. tract, uterus, eyes, and blood vessels.
Skeletal muscle contains bundles of very long, multinucleated cells with cross-striations. Their contraction is quick, forceful, and usually under voluntary control. They are found in your skeleton.
Cardiac muscle also has cross-striations and is composed of elongated, often branched cells bound to one another at structures called intercalated discs that are unique to cardiac muscle. Contraction is involuntary, vigorous, and rhythmic. They are found in your heart.
Smooth muscle consists of collections of fusiform cells that lack striations and have slow, involuntary contractions. Their location is found in your G.I. tract, uterus, eyes, and blood vessels.