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MSAK #5
Muscle movement
| Term | Meaning |
|---|---|
| Flexion | bending movent results in a decrease in the angle of a joint. |
| Extension | movement that increased the angle of a joint. |
| Hypertension | excessive or unnatural movement in direction of extension |
| Lateral flexion | side bending of head neck or trunk. Only in spine |
| Abduction | lateral movement away from midline in the frontal plane |
| Adduction | Medial movement toward midline |
| Protraction | Movement anteriorly of shoulder blades or jaw |
| Retraction | Movement of shoulder blades to posterior |
| Elevation | Lifting or raising a part superiorly |
| Depression | Lowering a body part inferiorly |
| Upward rotation | Glenoid fossa moves upward |
| Downward rotation | Glenoid fossa moves downward |
| Horizontal abduction | Humerous moves in a horizontal plane posterior to frontal plane |
| Horizontal adduction | Humerous moves in horizontal anterior to frontal plane |
| Circumduction | Circular movement of hips or shoulders |
| Rotation | Relvolving the head, neck, trunk, or pelvis about long axis |
| Medial(internal) rotation | Rotation of a bone on a long axis toward midline of the body |
| Lateral (external) rotation | Rotation of a bone on a long axis away from the midline of the body |
| Oppostion | Thumb pad to finger pad |
| Dorsiflection | Standing on your heels |
| Plantar flexion | Standing on your toes |
| Eversion of foot | roll bottom of foot out |
| Inversion of foot | roll bottom of foot in |
| Supination | Rotation of forearm so palm faces up |
| Pronation | Rotation of forearm so palm faces down |
| Skeletal muscles | Attach to bone, voluntary,striated |
| Cardiac muscle | Heart, striated, involuntary |
| Smooth muscle | Involuntary, walls of organs |
| Origin | Generally the more proximal attachment site, more fixed point |
| Insertion | Generally the more distall attachment site, more mobile point |
| Action | Activity performed by a muscle |
| Fetal position | position of total flexion |
| Isotonic contraction | Muscles only pull, no change in length |
| Concentric contraction (isotonic) | Tension, shortens,movement against gravity |
| Eccentric contraction (isotonic) | Tension, lengthing, movement with gravity |
| Isometric contraction | Tension, no change in length |
| Agonist | Main muscle(s) that produces movement |
| Antagonist | Muscles that are opposite of agonist |
| Synergist | Muscle(s) that assists the agonist |
| Stabilizers | Muscles that surround a jint or body part (keep head in socket) |
| Neutralizer | Counteract or neutralize action of another muscle |
| ROM | Range of motion |
| Muscle crosses joint posteriorly | Moves body part posteriorly |
| Muscle crosses joint aneteriorly | Moves body part anteriorly |
| uscle crosses joint medially | Moves body part medially |
| Muscle crosses joint laterally | Movs body part laterally |
| Rectus (direction of fibers) | Straight |
| Transverse (direction of fibers) | perpendicular to midline |
| Oblique (direction of fibers) | at an angle to midline |
| Magnus (size) | Large |
| Maximus (size) | Largest |
| Medius (size) | Middle-sized |
| Minimus (size) | Smallest |
| Biceps | 2 heads |
| Triceps | 3 heads |
| Deltoid | Triangular |
| Trapezious | Trapezoidal |
| Longus | Long |
| Brevis | Short |
| Superficialis | Close to surface |
| Profundus | Deep |
Created by:
dlt0951
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