BIL 150 Study Guide - Midterm Guide: Bulbourethral Gland, Corpus Luteum, Fetus

• School: University of Miami
• Department: Biology
• Course: BIL 150
• Professor: Michael Gaines

Document Summary

Recognition of traits shared by broad ranges of pathogesns using a small set of receptors. It is not specific and the response is rapid. Ears have hair and wax that trap pathogens. Nose has mucus and hair that traps pathogens. Digestive tract traps pathogens in saliva and mucus that are then destroyed by the low ph of the stomach. Airways trap pathogens in mucus and are swept out of the airway by the beating of cilia. Neutrophils (white blood cells): circulate in the blood and are attracted by signals from infected tissues and then engulf and destroy the infecting pathogens. Some migrate throughout the body while others reside permanently in organs. Dendritic cells: stimulate adaptive immunity against pathogens they encounter and engulf. Eosinophils: important in defending against multicellular invaders and are often found beneath mucosal surface. Natural killer cells: help in killing cancer cells.