... andSKIN; the nasal bone is less than one half inch long. The ethmoid, vomer, and maxilla bones frame the back of the nose. Ridges in these bones, the nasalconchae, direct the flow of air into the ... section “Emergency andFirst Aid” are unique within the orientation of The Facts On File Encyclopedia of Health and Medicine inthat they feature instructional rather than infor-mational content. ... classifications begin witha general discussion of the type of medicationand its common uses and then incorporate con-tent under the subheadings “How These Med-ications Work,” “Therapeutic Applications,”...