Which term defines the science of how the body parts and systems function?

Which term defines the science of how the body parts and systems function?

• A. Physiology
• B. Anatomy
• C. Cytology
• D. Histology

Answer: (A)

Physiology is the study of how the body parts and systems function. It focuses on the processes, mechanisms, and interactions that keep the body alive, such as how the heart pumps blood, how lungs exchange gases, or how hormones regulate metabolism. Anatomy, in contrast, looks at the structure and location of organs. Cytology studies cells, and histology examines tissues. Since the question asks about function and how systems work together, physiology is the best fit.

Physiology is the study of how the body parts and systems function. It focuses on the processes, mechanisms, and interactions that keep the body alive, such as how the heart pumps blood, how lungs exchange gases, or how hormones regulate metabolism. Anatomy, in contrast, looks at the structure and location of organs. Cytology studies cells, and histology examines tissues. Since the question asks about function and how systems work together, physiology is the best fit.