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the muscular system
definitions
Question | Answer |
---|---|
Muscles | -makes body movement possible, -holds body erect, -move body fluids, -produce body. |
Fascia | covers, supports, and separates muscles. |
Tendons | Attach muscles to the bones |
Skeletal Muscles | Attached to bones of the skeleton, makes body motions possible, voluntary muscles, striated muscles. |
Smooth Muscles | Located in walls of internal organs, blood vessels, and ducts leading from glands. Move and control the flow of fluids through these structures. Involuntary, unstriated, and visceral muscles. |
Myocardial Muscles | Form the muscular walls of the heart. Myocardium or cardiac muscle |
Muscle Innervation | Stimulation of a muscle by an impulse transmitted by a motor nerve |
Neuromuscular | Pertaining to the relationship between a nerve and muscle |
Antagonistic Muscle Pairs | Contraction and Relaxation |
Abduction | Movement of a limb away from the midline of the body |
Adduction | Movement of a limb toward the midline of the body |
Flexion | Decreasing the angle between two bones by bending a limb at a joint |
Extension | Increasing the angle between two bones or the straightening out of a limb. |
Hyperextension | The extreme or overextension of a limb or body part beyond its normal limit. |
Rotation | A circular movement around an axis such as the shoulder joint. |
Circumduction | The circular movement at the far end of a limb |
Supination | The act of rotating the arm or leg so that the palm of the hand or the sole of the foot is turned forward or upward. |
Pronation | The act of rotating the arm or leg so that the palm of the hand or the sole of the foot is turned downward or backward. |
Dorsiflexion | The movement that bends the foot upward at the ankle |
Plantar Flexion | The movement that bends the foot downward at the ankle. |