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- Structure and function are closely related in the human body.
- The study of the human body includes both anatomy and physiology together.
- The structure of a body part often reflects its function.
- The bones of the skull join tightly to form a rigid structure.
- The rigid structure of the skull protects the brain.
- The bones of the fingers are loosely joined.
- The loose connection of finger bones allows a variety of movements.
- The walls of the pulmonary alveoli (air sacs) in the lungs are very thin.
- The thin walls of pulmonary alveoli allow rapid movement of oxygen (O₂) into the blood.
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