What is the meaning of the prefix "endo-"?

The prefix "endo-" originates from Greek and means "within" or "inside." In medical terminology, this prefix is commonly used to describe structures or substances that are situated internally. For example, "endocardium" refers to the inner lining of the heart, while "endogenous" refers to processes or substances that originate from within an organism. Understanding this prefix can be crucial for medical professionals, such as combat medics, as it helps in interpreting various medical terms related to anatomy and physiology. This prefix highlights the importance of internal locations or conditions that are integral to understanding health and disease management.