What is Anatomy and Physiology?

Anatomy and physiology are two biological disciplines that together provide a comprehensive understanding of living organisms, particularly humans.

Anatomy is the science concerned with the structure of organisms and their parts. It studies the macroscopic (visible to the naked eye) and microscopic (only visible with a microscope) features of an organism.

Physiology is the study of the function of body parts and how they work together to keep an organism alive and functioning. It examines how organs, tissues, and cells carry out their specific functions and how these functions work together to maintain a state of balance, known as homeostasis, within the body.

An example of physiology is the study of how the digestive system breaks down food into nutrients that the body can absorb.

The two fields are interrelated.  Understanding the structure of an organ (anatomy) is essential to understanding how it functions (physiology).  For instance, the knowledge of the four chambers of the heart and the valves between them (anatomy) is necessary to understand how blood flows through the heart (physiology).

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