1a : the act or action of grasping with the intellect : understanding children who have difficulty with comprehension of spoken language What the artist actually needs is comprehension of his aims and ideals by men he respects â¦ â H. L. Menckenb : knowledge gained by comprehending tests that measure the students' comprehension in math She carried on ...
The inflammatory response (inflammation) occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause. The damaged cells release chemicals including histamine, bradykinin, and prostaglandins. These chemicals cause blood vessels to leak fluid into the tissues, causing swelling.
When you are exposed to Hepatitis B, your body mounts an immune reaction against it as an invader. 1  This happens whether you are exposed due to blood or sexual contact or if you are vaccinated with the Hepatitis B vaccine. The virus has proteins on its surface (antigens) that cause your immune reaction.