Glossary (click on word and go to the link to see a diagram)
the roof of the mouth.
effective against viruses. an antiviral drug used especially in the treatment of herpes and AIDS. an antiviral drug used for the treatment of various herpes virus infections. the chemical element of atomic number 16, a yellow combustible non-metal. the gaseous envelope surrounding the earth; the air. of, pertaining to, or resembling a planet or the planets. so small as to be invisible or indistinct without the use of the microscope: microscopic organisms. Compare macroscopic.an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.any of several diseases caused by herpesvirus, characterized byeruption of blisters on the skin or mucous membranes. Compare chickenpox, genital herpes, oral herpes, shingles. a diffuse, complex network of interacting cells, cell products, and cell-forming tissues that protects the body from pathogens and otherforeign substances, destroys infected and malignant cells, andremoves cellular debris: the system includes the thymus, spleen,lymph nodes and lymph tissue, stem cells, white blood cells,antibodies, and lymphokines. (skin cell) any of the cells making up the skin a sign or indication of something. (white cell) leukocyte: blood cells that engulf and digest bacteria and fungi; an important part of the body's defense system. ubiquitous one-celled organisms, spherical, spiral, or rod-shaped andappearing singly or in chains, comprising the Schizomycota, a phylumof the kingdom Monera (in some classification systems the plant classSchizomycetes), various species of which are involved infermentation, putrefaction, infectious diseases, or nitrogen fixation. Red blood cells, or erythrocytes, are the most common type of blood cell and the vertebrate organism's principal means of delivering oxygen to the body tissues via the blood flow through the circulatory system |