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platysma |
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platysma [plə′tiz·mə] (anatomy) A subcutaneous muscle of the neck, extending from the face to the clavicle; muscle of facial expression. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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With the patient under general anesthesia, a horizontal submental incision was made just superior to the hyoid bone through subcutaneous tissues and platysma muscle. of Units External rectus 2,970 Platysma 1,096 First lumbrical 96(b) First dorsal interosseus 119 Brachioradialis 333(b) Tibialis anterior 445 Medial gastrocnemius 579 (a) Feinstein and colleagues assumed that 60% of large axons were [alpha]-motor, on the basis of axon counts in a patient who died from poliomyelitis. On all four patients, Cook performed laser resurfacing of the dermal surfaces of the skin and the platysma muscle -- an inherently dangerous and experimental procedure which was performed without the appropriate controls such as an institutional review board and/or clinical study, and without adequate consent by the patients. |
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