Meckel's cartilage
Meckel's cartilage | |
---|---|
first pharyngeal arch | |
Gives rise to | incus, malleus |
Identifiers | |
Latin | cartilago arcus pharyngei primi |
TE | cartilage_by_E4.0.3.3.3.1.3 E4.0.3.3.3.1.3 |
Anatomical terminology] |
In humans, the cartilaginous bar of the
The dorsal end of each cartilage is connected with the ear-capsule and is ossified to form the
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.
Johann Friedrich Meckel, the Younger discovered this cartilage in 1820.
Related :- Crypta Magna (Remnant of 2nd pharyngeal pouch from which develops the intratonsillar crypt).
Evolution
Meckel's cartilage is a piece of
In early fish and in
In some extinct mammal groups like
Additional images
-
Vertical section of the mandible of an early human fetus. X 25.
References
This article incorporates text in the public domain from page 66 of the 20th edition of Gray's Anatomy (1918)
- ^ a b The Gill Arches: Meckel's Cartilage, palaeos. Retrieved 4 December 2014.
- .
External links
- synd/2049 at Who Named It?