In vascular anatomy, the term "angiosome" refers to:

The term "angiosome" describes a specific vascular territory that is supplied by a single source artery. In vascular anatomy, angiosomes are important for understanding the distribution of blood supply to tissues, especially in surgical planning and the assessment of perfusion. Each angiosome is typically defined by its arterial supply and is crucial in conditions such as ischemia or when considering flap surgeries, where the blood supply to a particular area must be preserved.

The concept underscores the relationship between the vascular anatomy and the regions of tissue that an artery services, facilitating interventions or treatments that might involve restoring or enhancing blood flow. Understanding angiosomes allows healthcare professionals to predict how tissue will be impacted by vascular diseases or interventions and helps guide appropriate surgical approaches.