Across
- 3. cells that are important for producing a cellular immune response
- 4. the smallest of all microorganisms, visible only with an electron microscope. Viruses cause many infections, including the common cold, hepatitis A, B, and C, and human immunodeficiency virus HIV
- 5. when the causative organism is acquired from other people
- 8. encompasses and has replaced the term nosocomial, which was used specifically to indicate something originating or taking place in a hospital
- 9. the immune system’s second line of defense synonym: antibody response
- 10. an inflammation of the oral mucosa, has numerous causes, such as bacteria, virus, mechanical trauma, irritants, nutritional deficiencies, and systemic infection
- 13. the immune system’s first line of defense, involving white blood cells that have the ability to ingest foreign particles
- 14. plantlike organisms (molds and yeasts) that also can cause infection, are present in the air, soil, and water. Some examples of infections caused by fungi include athlete’s foot, ringworm, and yeast infections
Down
- 1. an ulceration and dry scaling of the lips with fissures at the angles of the mouth, can have multiple causes, including infections of the oral cavity
- 2. lymphocytes that attack foreign invaders directly
- 6. when an infection results from a treatment or diagnostic procedure.
- 7. are organisms that live on or in a host and rely on it for nourishment.
- 11. practices include bathing and care of the skin and specific body areas, including the oral cavity, eyes, ears, nose, hair, nails, feet, and perineal and vaginal areas.
- 12. lymphocytes that lyse cells infected with virus; also play a role in graft rejection