Nutrient canal
The blood supply to long bones, here with nutrient artery, vein and foramen labeled.
A nutrient canal feeding the femur seen on X-ray
Identifiers
TA98A02.0.00.042
TA2402
FMA75378
Anatomical terminology

All bones possess larger or smaller foramina (openings) for the entrance of 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. The nutrient canal (foramen) is directed away from the growing end of bone. The growing ends of bones in upper limb are upper end of humerus and lower ends of radius and ulna. In lower limb, the lower end of femur and upper end of tibia are the growing ends.[1] The nutrient arteries along with nutrient veins pass through this canal. A nutrient canal is found in long bones, in the mandible,[citation needed] and in dental alveoli.[2] In long bones the nutrient canal is found in the shaft.

References

edit

Public domain This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918) This article incorporates text from a public domain edition of Sobotta's Anatomy.

  1. ^ Atlas and textbook of human anatomy. Atlas der deskriptiven Anatomie des Menschen.English. Saunders. 1909.
  2. ^ Fielding, CG (1 March 2002). "Nutrient Canals of the Alveolar Process as an Anatomic Feature for Dental Identifications". Journal of Forensic Sciences. 47 (2): 381–3. doi:10.1520/JFS15262J. PMID 11908613.


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Nutrient artery

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

Humerus

just below this is the entrance of the nutrient canal, directed downward; sometimes there is a second nutrient canal at the commencement of the radial sulcus

Suez Canal

freshwater and cut all natural nutrient-rich silt entering the eastern Mediterranean at the Nile Delta. The Suez Canal Economic Zone, sometimes shortened

Iliac fossa

passes around the iliac fossa. It is perforated at its inner part by a nutrient canal. Below it there is a smooth, rounded border, the arcuate line, which

Ulna

the junction of the upper with the middle third of the bone is the nutrient canal, directed obliquely upward. The dorsal surface (facies dorsalis; posterior

Linea aspera

below. The linea aspera is perforated a little below its center by the nutrient canal, which is directed obliquely upward. Cross-section through the middle

Eutrophication

Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of organisms

Central canal

fluid, and shares the same ependymal lining. The central canal helps to transport nutrients to the spinal cord as well as protect it by cushioning the