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Encyclopedia > Meckel's cartilage
Meckel's cartilage
Head and neck of a human embryo eighteen weeks old, with Meckel’s cartilage and hyoid bar exposed.
[[Image:|250px|center|]]
Latin '
Gray's subject #13 66
System
MeSH [1]

The cartilaginous bar of the mandibular arch is formed by what are known as Meckel’s cartilages (right and left) ; above this the incus is developed. Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... The incus is the anvil-shaped small bone or ossicle in the middle ear. ...


The dorsal end of each cartilage is connected with the ear-capsule and is ossified to form the malleus; the ventral ends meet each other in the region of the symphysis menti, and are usually regarded as undergoing ossification to form that portion of the mandible which contains the incisor teeth. The malleus is hammer-shaped small bone or ossicle of the middle ear which connects with the incus and is attached to the inner surface of the eardrum. ... The external surface of the mandible is marked in the median line by a faint ridge, indicating the Symphysis menti or line of junction of the two pieces of which the bone is composed at an early period of life. ... Ossification is the process of bone formation, in which connective tissues, such as cartilage are turned to bone or bone-like tissue. ... The mandible (inferior maxillary bone) (together with the maxilla) is the largest and strongest bone of the face. ...


The intervening part of the cartilage disappears; the portion immediately adjacent to the malleus is replaced by fibrous membrane, which constitutes the sphenomandibular ligament, while from the connective tissue covering the remainder of the cartilage the greater part of the mandible is ossified.


External links


This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. Who Named It is a Norwegian database of several thousand eponymous medical signs and the doctors associated with their identification. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


 
 

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