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chapter 4
Muscular Tissue
| Term | Definition |
|---|---|
| Muscular tissue muscle fibers | Long cells |
| Actin Myosin | Muscle cells contain these Contractile Proteins |
| Skeletal muscle | is voluntary, attached by tendons to bones of the skeleton or skin. |
| Smooth Visceral Muscle | found in the walls of hollow viscera (organs) |
| Cardiac | |
| Skeletal muscle | Contraction causes movement of body parts Have a cylindrical shape and are long Muscle fibers (cells) have multiple, peripherally located nuclei Muscle fibers appear striated due to the placement of actin and myosin filaments in the fiber |
| Smooth Visceral Muscle | Spindle-shaped cells with one central nucleus Under involuntary control No striations Contracts rhythmically on its own, but can be modified by the nervous and endocrine systems |
| Smooth Visceral Muscle appearance | Spindle-shaped with a single nucleus |
| Smooth Visceral Muscle location | Stomach, intestine, urinary bladder, uterus, blood vessels, |
| Cardiac Muscle | found only in the walls of the heart. |
| Cardiac Muscle | Pumps blood Cells have striations, like skeletal muscle Is involuntary, like smooth muscle; can also be modified by the nervous and endocrine systems |
| Cardiac Muscle | Cardiac muscle cells have a single, centrally located nucleus and are branched Cardiac muscle cells are bound to one another by intercalated disks |
| Cardiac Muscle appearance | Striated and branched Single nucleus |
Created by:
JamieS1982