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Reianna Dominguez
Anatomy 6-12
| Term | Definition |
|---|---|
| endomysium | The skeletal muscle cells, or muscle fibers, are covered by a delicate connective tissue membrane |
| perimysium | Groups of skeletal muscle fibers, called fascicles, are then bound together into bundles by a tougher connective tissue envelope called the |
| epimysium | The muscle as a whole is covered by a coarse sheath |
| pectoralis minor | lies under the larger pectoralis major muscle on the anterior chest wall |
| serratus anterior | helps hold the scapula against the thorax to prevent “winging” and is a strong abductor that is useful in pushing or punching movements |
| posture | simply maintaining optimal body position. |
| satellite cells | are stem cells that fuse with myocytes during strength training to make bigger muscle fibers |
| sarcolemma | a name often used for the plasma membrane of a muscle fiber |
| Sarcoplasm | is its cytoplasm |
| Contractility of muscle cells | the ability to contract or shorten, allows muscle tissue to pull on bones and thus produce body movement |
| Extensibility, the ability to extend or stretch | allows muscles to return to their resting length after having contracted |
| afferent division | consists of all of the incoming sensory or afferent pathways |
| efferent division | consists of all the outgoing motor or efferent pathways |
| upper respiratory tract | is composed of the nose, nasopharynx, oropharynx, laryngopharynx, and larynx |
| lower respiratory tract | consists of the trachea, all segments of the bronchial tree, and the lungs |
| Hemodynamics | a term used to describe a collection of mechanisms that influence the active and changing—or dynamic—circulation of blood |
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