This preview shows page 1. Sign up to view the full content.
Unformatted text preview: The tonsils protect the openings between the nasal and oral cavities and the pharynx. Lymph nodes, located along lymphatic vessels, filter lymph. The white pulp of the spleen responds to foreign substances in the blood, whereas the red pulp phagocytizes foreign substances and worn out erythrocytes. The spleen also functions as a reservoir for blood. The thymus processes lymphocytes that move to other lymphatic tissue to respond to foreign substances. Immunity Immunity is the ability to resist the harmful effects of microorganisms and other foreign substances. Innate Immunity Mechanical Mechanisms o The skin and mucous membranes are barriers that prevent the entry of microorganisms into the body. o Tears, saliva, and urine act to wash away microorganisms....
View Full Document
This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.
- Fall '10