NR-507 STUDY GUIDE AND PRACTICE QUESTIONS 1. Types of immunity ch 7 & 8 a. Innate- natural epithelial barrier and inflammation the make innate resistance and protection pg. 191 Innate immunity includes two lines of defense: Natural barriers and inflammation. i. Natural barriers- physical, mechanical, and biochemical barriers at the body’s surfaces ii. Inflamation- associated with infection usually initiates an adaptive process that results in a long-term and very effective immunity to the i...