Here's a little more detail:

* Physiology focuses on how the different systems of the body work, including the circulatory, respiratory, digestive, nervous, muscular, skeletal, and endocrine systems.

* It examines the processes that keep the body alive and functioning, such as breathing, digestion, circulation, and nerve impulses.

* It's closely related to anatomy, which studies the structure of the body.

Let me know if you have any other questions!