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a. SKELETAL MUSCLE

a. SKELETAL MUSCLE

b. CARDIAC MUSCLE

Figure 2-3. Types of muscle tissue.

C. SMOOTH MUSCLE

C. SMOOTH MUSCLE

b. CARDIAC MUSCLE

Figure 2-3. Types of muscle tissue.

b. Cardiac Muscle Tissue. The cells (muscle fibers) of cardiac muscle tissue are short, branched, contain one nucleus, and are striated. This tissue makes up the myocardium (wall) of the heart.

c. Smooth Muscle Tissue. The cells (muscle fibers) of smooth muscle tissue are spindle-shaped, contain one nucleus, and are not striated. Smooth muscle tissue is generally found in the walls of hollow organs such as the organs of the digestive and respiratory systems, the blood vessels, the ureters, urinary bladder, urethra, and reproductive ducts.

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