| A | B |
|---|
| Muscular System | Body system composed of muscles that produce movement, maintain posture, and generate heat |
| Muscle Tissue | Specialized tissue capable of contraction |
| Skeletal Muscle | Voluntary muscle attached to bones that produces body movement |
| Smooth Muscle | Involuntary muscle found in walls of hollow internal organs |
| Cardiac Muscle | Involuntary muscle found only in the heart |
| Muscle Contraction | Process by which muscle fibers shorten to produce movement |
| Origin | Stationary or less moveable attachment site of a muscle |
| Insertion | Attachment site of a muscle to a bone that moves |
| Agonist | muscle that contracts to provide movement |
| Antagonist | Muscle that relaxes or lengthens to allow movement |
| Synergist | Muscle that assists the agonist in movement |
| Stabilizer | Muscles that fix joints in place |
| Tendon | Strong connective tissue that attaches muscle to bone |
| Fascia | Connective tissue that surrounds and supports muscles |
| Flexion | Movement that decreases the angle between bones |
| Extension | Movement that increases the angle between bones |
| Abduction | Movement of a limb away from the midline of the body |
| Adduction | Movement of a limb toward the midline of the body |
| Rotation | Movement of a body part around a central axis |
| Circumduction | Circular movement in which the distal end of a limb traces a circle while the proximal end remains stationary |
| Dorsiflexion | Bending the foot upward at the ankle, bringing toes toward the shin |
| Plantar Flexion | Pointing toes downward, increasing the angle between the foot and shin |
| Supination | Rotating the forearm or hand so the palm faces forward or up; rotating the foot laterally so weight is on the outer edge |
| Pronation | Rotating the forearm or hand so the palm faces down or backward; rotating the foot medially so weight is on the inner edge |
| Orthopedic surgeon | Surgeon who specializes in diagnosing and treating conditions related to the ear, nose and throat |
| Physiatrist | Physician specializing in diagnosing and treating conditions related to neuromuscular disorders and rehabilitation |
| Rheumatologist | Physician who specializes in diagnosing and treating condition related to pain, inflammation, connective tissues and autoimmune disorders |
| Chiropractor | Healthcare professional who specializes in using physical manipulation of joints and tissues to treat neuromusculoskeletal disorders and overall body function |
