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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 |