Muscle tissues are classified based on their structure and function:
1. Skeletal Muscle: Composed of long, cylindrical fibers that are multinucleated and striated. These muscles are organized into bundles called fascicles, each surrounded by connective tissue layers - endomysium, perimysium, and epimysium. 2. Cardiac Muscle: Found in the heart, consisting of striated fibers connected by intercalated discs. The layers include the endocardium (inner lining), myocardium (muscular layer), and epicardium (outer layer). 3. Smooth Muscle: Non-striated and found in walls of hollow organs like the intestines and blood vessels. It has layers like the longitudinal and circular layers in the gastrointestinal tract.