Knowledge Tree
Relations (1)
related 2.00 — strongly supporting 3 facts
The skin acts as a physical barrier that prevents infection [1], utilizes epithelial cells to secrete protective chemicals against infection [2], and relies on Vitamin A to maintain the structural integrity necessary to serve as a barrier against infection [3].
Facts (3)
Sources
Parts of the Immune System | Children's Hospital of Philadelphia chop.edu 1 fact
claimEpithelial cells in the skin, digestive, respiratory, and genital tracts secrete chemicals that prevent infection.
How the Immune System Works with Primary Immunodeficiency igcares.com 1 fact
claimThe human body's skin and internal mucous membranes function as physical barriers to prevent infection from bacteria present in the environment.
Immunity In Depth | Linus Pauling Institute lpi.oregonstate.edu 1 fact
claimVitamin A helps maintain the structural and functional integrity of skin and mucosal cells in the eye, respiratory, gastrointestinal, and genitourinary tracts, which serve as barriers against infection.