Homeostasis Review Turn UP! • Define hyper/hypotension, hyper/hypothermia, and dehydration. • Define all directional terms. • Draw and explain anatomical planes. • This protective covering protects the brain, and consist of what three layers? • How many cavities are within the thoracic? Name them. • Name the muscle that separates the thoracic and abdominopelvic cavity. • Draw and explain negative and positive feedback loops. • Define and explain symptom and sign. • What is within the ventral and dorsal cavities? • What is contained within each of the four quadrants? • List the normal heart rates of adults, children, and infants. What affects heart rate? • List and name five places to check for a pulse. • List the fluids of the body, and where they are found.