Periosteum
| Periosteum | |
|---|---|
 The periosteum covers the outside of bones. | |
 | |
| Details | |
| Location | Outer surface of all bones |
| Identifiers | |
| Latin | periosteum |
| MeSH | D010521 |
| TA98 | A02.0.00.007 |
| TA2 | 384 |
| TH | H2.00.03.7.00018 |
| FMA | 24041 |
| Anatomical terminology | |
The periosteum is a
long bones. (At the joints of long bones the bone's outer surface is lined with "articular cartilage", a type of hyaline cartilage.) Endosteum lines the inner surface of the medullary cavity of all long bones.[2]
Structure
The periosteum consists of an outer fibrous layer, and an inner cambium layer (or osteogenic layer). The fibrous layer is of
chondroblasts, which are essential to the healing process. The outer fibrous layer and the inner cambium layer are differentiated under electron micrography.[4]
As opposed to
lamellae
. It also provides an attachment for muscles and tendons.
The periosteum that covers the outer surface of the bones of the skull is known as the pericranium, except when in reference to the layers of the scalp.
Etymology
The word periosteum is derived from the Greek peri-, meaning "surrounding", and -osteon, meaning "bone". The peri refers to the fact that the periosteum is the outermost layer of long bones, surrounding other inner layers.[6]
Additional images
-
Diagrammatic section of head.
See also
References
- OCLC 16943074.
- ^ "Definition of PERIOSTEUM". www.merriam-webster.com. Retrieved 2022-02-03.
- PMID 20049593.
- PMID 32491516, retrieved 2021-12-31
- ^ Modric, Jan (9 December 2013). "Periosteum Definition, Location, Anatomy, Histology and Function - eHealthStar". Retrieved 2022-02-03.
- ^ "peri- | Meaning of prefix peri- by etymonline". www.etymonline.com. Retrieved 2022-02-03.
Further reading
- Brighton, Carl T.; Hunt, Robert M. (1997). "Early histologic and ultrastructural changes in microvessels of periosteal callus". Journal of Orthopaedic Trauma. 11 (4): 244–253. PMID 9258821.
External links
- "Periosteum". Innerbody. Retrieved 2022-02-03.
