Nutrient artery

The nutrient artery (arteria nutricia) or medullary, usually accompanied by one or two veins, enters the bone through the nutrient foramen, runs obliquely through the cortex, sends branches upward and downward to the bone marrow, which ramify in the endosteum–the vascular membrane lining the medullary cavity–and give twigs to the adjoining canals. Nutrient arteries are the most apparent blood vessels of the bones.

Nutrient artery
The blood supply to long bones, here with nutrient arteries labeled.
A nutrient artery feeding the femur seen on X-ray
Details
Identifiers
Latin	Arteria nutricia, arteria nutriens
TA	A12.0.00.004
FMA	50779
Anatomical terminology

All bones possess larger or smaller foramina for the entrance of the nourishing blood-vessels; these are known as the nutrient foramina, and are particularly large in the shafts of the larger long bones, where they lead into a nutrient canal, which extends into the medullary cavity (bone marrow cavity).[1]