collar /col·lar/ (kol´er) an encircling band, generally around the neck.
cervical collar,
cervical collar see under orthosis.
Philadelphia collar a type of cervical orthosis that restricts anterior-posterior cervical motion considerably but allows some normal rotation and lateral bending.
cervical collar,
n a leaded device positioned over the throat roughly midway between the chin and collarbones. Used because extended exposure of the thyroid gland to radiographs can cause thyroid cancer. See also apron, lead.
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Lymphatic drainage of the face.
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