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Showing posts from July 3, 2010

FACIAL BONES ANATOMY - LESSON 210

Now we will learn about facial bones.  These bones are joined together by sutures. There are specific air cavities called sinuses located in specific spaces within the facial bone and cranial bones.  Sinuses soften the skull and gives humidity to the air passes through these bones. Nasal bones, vomer, lacrimal bones, zygomatic bones, mandibular bone, and maxillary bones. We will see about each bone one by one now.  1.  Nasal bones:  Nas/o means nose.  We can say these bones as nose bones.  These bones give support to the nasal bridge.  Nasal bones join with the frontal bone superiorly and form part of the nasal septum. 2.  Vomer:  This is a thin facial bon.  Vomer is single in number.  This bone is flat in structure.  Vomer forms the lower part of the nasal septum. 3.  Lacrimal bones:  These bones are two in number.  Lacrim/o means tear.  Lacrimal bones are situated on each side of the eye at the corner of each eye.  These bones consist of a duct called tear duct