SMOOTH MUSCLE (400X) is non-striated, and the individual muscle fibers are very thin and spindle-shaped. The nucleus of each muscle cell is visible here as elongated purple structures.

SMOOTH MUSCLE (400X) is non-striated, and the individual muscle fibers are very thin and spindle-shaped. The nucleus of each muscle cell is visible here as elongated purple structures.

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The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. (Same magnification)

The body contains three types of muscle tissue: (a) skeletal muscle, (b) smooth muscle, and (c) cardiac muscle. (Same magnification)

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Week 3.   No bones about it; your bones can’t do much without muscles to move them. You have three major types of muscle tissue known as skeletal, smooth, and cardiac muscle. Learn about all 11 organ systems with the Amoeba Sisters! http://www.youtube.com/watch?v=nnjmrrQ6xOs, w3

Week 3. No bones about it; your bones can’t do much without muscles to move them. You have three major types of muscle tissue known as skeletal, smooth, and cardiac muscle. Learn about all 11 organ systems with the Amoeba Sisters! http://www.youtube.com/watch?v=nnjmrrQ6xOs, w3

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Smooth muscle tissue is formed in the walls of hollow organs such as the stomach, uterus and blood vessels. IT constricts and enlarge to propel things.

Smooth muscle tissue is formed in the walls of hollow organs such as the stomach, uterus and blood vessels. IT constricts and enlarge to propel things.

Cardiac muscle fiber from Histology: Muscle Tissue; and from Muscular System: Cardiac and Smooth Muscle; and from Cardiovascular: Cardiac Muscle    http://www.primalonlinelearning.com

Cardiac muscle fiber from Histology: Muscle Tissue; and from Muscular System: Cardiac and Smooth Muscle; and from Cardiovascular: Cardiac Muscle http://www.primalonlinelearning.com

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