: The Nervous and Endocrine systems send signals to coordinate everything from muscle movements to blood sugar levels.
: The Digestive and Urinary systems process fuel and filter out waste. 3. The Conflict: Illness and Dysfunction The Human Body in Health and Illness
: Vaccinations and regular check-ups to catch disruptions early. The Human Body in Health and Illness - E-Book: 7th edition : The Nervous and Endocrine systems send signals