Objective 68 & 70: How chemical buffers interact to protect against lethal changes in pH & Recognize how the lungs and kidneys interact to protect the body against lethal changes in pH

Understanding the job and function of the kidneys and lungs helped me to achieve this objective.  Knowing already that the lungs help to maintain the body's pH by exhaling carbon dioxide during respiration and the kidneys excrete wastes.  This video helped put it in prospective for the kidneys.