CoreCHI Exam Practice | 245 Questions with 100% Correct Answers | Verified | Latest Update | 18 Pages 2 / 18 t organ has a lymphatic and endocrine function?:spleen What humidifies and filters air when it passes through the nasal cavity toprevent harmful organisms from going in?: cilia and mucus a) Whatisthe thickest muscular layer of the heart and isthe main force behindcontinuous pumping of blood?: myocardium b) What vessels have one-way valves to prevent back flow: lymphatic vessels ...