Sphenomandibular ligament and degenerating Meckel's cartilage revisited: Sequential variations with temporal bone deformity for ligament attachment in near-term human fetuses

CONCLUSIONS: Most of the specimens (n = 15) exhibited a sequential change from a cartilaginous SML as a continuation of the MC remnant to the ligament after the disappearance of the cartilage. The degenerating MC appeared to cause transformation from the AP-goniale complex and/or TYB to "another ligament" that replaced the usual SML at the upper part. Near the MC remnant, a similar transformation was also suggested on the squamosa or petrosa. The sphenoid spine appeared to originate often from the sphenoid ala major but sometimes from the TYB.PMID:37988318 | DOI:10.1111/joa.13974

Source: Journal of Anatomy - November 21, 2023 Category: Anatomy Authors: Zhe-Wu Jin Yohei Honkura Masahito Yamamoto Shogo Hayashi Gen Murakami Hiroshi Abe Jos é Francisco Rodríguez-Vázquez Source Type: research