Anatomy and Physiology

Human Anatomy

• Human anatomy is the study of body structure.
• The word "anatomy" comes from the Greek word meaning "to cut" or "cut backward," referring to the process of putting things together from slices.

Human Physiology

• Human physiology is the science of body functions, including the study of homeostasis.
• Homeostasis refers to maintaining an internal equilibrium.
• Advanced physiology courses delve into the mechanisms that maintain homeostasis.

Relationship Between Structure and Function

• Structure and function of the body are closely related; structure often mirrors function.
• Examples:
  • The heavy bones of the skull protect brain function.
  • Thin air sacs in the lungs facilitate gas exchange between the lungs and the blood.
  • The liver's convoluted structure filters blood and produces bile, with the twists and turns providing a large surface area for filtration.