The interior (opening through which blood flows) e.g., within a blood vessel.
Space within an artery, vein, intestine, or other tubular structure.
The cavity or channel within a blood vessel.
An SI unit of light emitted per second.
The inside width of a passage in the body or of an instrument such as an endoscope.
A hole at the end of an instrument such as an endoscope.
Interior aspect of a vessel.
Lumina, cavity, canal, or channel within an organ or tube; the space inside a structure.
Space inside the tubular artery, or tube; a standardized unit of light measurement called international candles; plural is lumina.
The space within a tubular or saclike part, such as a blood vessel, the intestine, or the stomach.
The space enclosed by a tubular structure or hollow organ (e.g. the gastrointestinal tract or urinary bladder).
The space within an artery, vein, intestine, or tube.
Within the realm of anatomy, the term “lumen” refers to the hollow space or passageway located within a blood vessel or tube-shaped organ. This cavity serves as a conduit through which various substances, such as blood or fluids, flow within the body. Understanding the concept of the lumen helps in comprehending the inner structure and functionality of blood vessels and tube-shaped organs, enabling a deeper understanding of their physiological processes and overall function.
The inner cavity of a tubular organ or structure, like the intestine.
The inner space or hollow of a tube, like that of an artery or intestine.