periosteum

American  

[per-ee-os-tee-uhm] / ˌpɛr iˈɒs ti əm /

noun

Anatomy.

• periostea
  plural

1. the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.

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periosteum British  

/ ˌpɛrɪˈɒstɪəm /

noun

1. a thick fibrous two-layered membrane covering the surface of bones

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Other Word Forms

Derived Forms

• periosteal
  adjective
• periosteous
  adjective
• subperiosteal
  adjective
• periosteally
  adverb
• subperiosteally
  adverb

Inflected Forms

Nouns

• periostea
  plural

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Etymology

Origin of periosteum

1590–1600; < New Latin, variant of Late Latin periosteon, noun use of neuter of Greek periósteos around the bones. See peri-, osteo-

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Compare meaning

How does periosteum compare to similar and commonly confused words? Explore the most common comparisons:

• periosteum vs. endosteum
• perichondrium vs. periosteum

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Example Sentences

See Examples For:

periosteum periostea

The periosteum contains blood vessels and cells that help to repair and restore bone.

From Textbooks ● Jan. 1, 2015

Tendons and ligaments also attach to bones at the periosteum.

From Textbooks ● Jun. 19, 2013

Figure 6.8 Periosteum and Endosteum The periosteum forms the outer surface of bone, and the endosteum lines the medullary cavity.

From Textbooks ● Jun. 19, 2013

It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection.

From Textbooks ● Jun. 19, 2013

Hemorrhages occur from the larynx, bronchial membrane, intestinal surfaces, and even into the parenchyma of the viscera, the muscles, serous membranes, periosteum, and neurilemma.

From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various

The periostea, denuded of their covering, were white and smooth, as if they had been polished.

From Toilers of the Sea by Victor Hugo

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