What does avascular mean?
Avascular refers to tissues or areas of the body that lack blood vessels. This term is often used in medical and biological contexts to describe tissues that rely on diffusion of oxygen and nutrients from nearby vascularized tissues. The avascular nature of certain tissues, such as cartilage and cornea, makes them unique and presents challenges for repair and healing. Understanding avascular tissues is important for the diagnosis and treatment of various medical conditions. Avascular tissues are found in several parts of the body and play critical roles in maintaining overall health.
adjectiveAvascular refers to tissues or areas of the body that lack blood vessels. This term is often used in medical and biological contexts.
- Lacking blood vessels
- Not supplied with blood vessels
"The cornea is an avascular tissue, meaning it does not have a direct blood supply."
"The avascular nature of cartilage makes it difficult to repair."
"Avascular tissues require diffusion of oxygen and nutrients from nearby vascularized tissues."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of avascular
The term 'avascular' originates from the Greek words 'a-' (without) and 'vasculum' (small vessel). It has been used in the English language since the late 19th century to describe tissues or areas lacking blood vessels. The term is closely related to 'vascular', which refers to blood vessels, and 'vasculature', which refers to the system of blood vessels in the body.
Usage notes
This term is commonly used in medical and biological contexts, particularly in reference to tissues or areas that lack a direct blood supply.