endosteum

American  

[en-dos-tee-uhm] / ɛnˈdɒs ti əm /

noun

Anatomy.

plural

endostea

1. the membrane lining the medullary cavity of a bone.

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endosteum British  

/ ɛnˈdɒstɪəm /

noun

1. a highly vascular membrane lining the marrow cavity of long bones, such as the femur and humerus

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Other Word Forms

• endosteal adjective

Etymology

Origin of endosteum

1880–85; end- + New Latin osteum < Greek ostéon bone

Compare meaning

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

• periosteum vs. endosteum

Example Sentences

The inner layer of the bone that lines the medullary cavity is called the endosteum.

From Textbooks • Jan. 1, 2015

The medullary cavity has a delicate membranous lining called the endosteum.

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

The osteoblast is the bone cell responsible for forming new bone and is found in the growing portions of bone, including the periosteum and endosteum.

From Textbooks • Jun. 19, 2013

The Membranes of the Brain.—The dura mater is a fibro-serous membrane, the outer, fibrous layer constituting the endosteum of the skull, the inner, serous layer forming one of the coverings of the brain.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander