This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: NONSPECIFIC SPECIFIC (IMMUNE) FIRST LINE OF DEFENSE SECOND LINE OF DEFENSE THIRD LINE OF DEFENSE INTACT SKIN MUCOUS MEMBRANES AND THEIR SECRETIONS PHAGOCYTIC WHITE BLOOD CELLS INFLAMMATION AND FEVER ANTIMICROBIAL SUBSTANCES SPECIALIZED LYMPHOCYTES (B AND T CELLS) ANTIBODIES NONSPECIFIC RESISTANCE Our first line of defense consists of the skin and mucous membranes, and works to keep pathogens out of the body by mechanical and chemical factors. NORMAL FLORA AND NONSPECIFIC RESISTANCE Normal flora organisms may keep pathogen numbers under control by: I. Competing with them for nutrients II. Producing substances harmful to the pathogens III. Altering environmental conditions so that pathogens are inhibited All of these could be considered nonspecific resistance....
View Full Document
This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09