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Anatomy.Chapter.11
The Muscular System
| Question | Answer |
|---|---|
| Fascicles | Muscle cells (fibers)s are organized in these bundles |
| Agonist | Greek for rival. Prime mover. Produces a particular movement. |
| Antagonist | Greek for against. Opposes movement of a particular antagonist. |
| Synergist | A smaller muscle that assists a larger agonist and helps start motion or stabilize fixator. |
| Fixator | Origin of agonist. |
| Externus | Visible at body surface |
| Internus | Deep Muscles |
| Intrinsic | Muscles inside an organ |
| Longus | Long |
| Longissimus | Longest |
| Teres | Long and round |
| Brevis | Short |
| Magnus | Large |
| Major | Larger |
| Maximus | Largest |
| Minor | Small |
| Minimus | Smallest |
| Erector Spinae muscles | Spinal extensors. Superficial and deep |
| Neck | Longus capitis and longus colli |
| Lumbar | Quadratus lumborum muscles. Flex the spine and depress the ribs |
| Oblique Muscles | Compress underling structures and rotate vertebral column |
| Rectus Muscles | Flex vertebral column and oppose erector spinae |