首页   按字顺浏览 期刊浏览 卷期浏览 Anatomy of musculus levator veli palatini in the 15-week human fetus
Anatomy of musculus levator veli palatini in the 15-week human fetus

 

作者: Kathleen Klueber,   H.L. Langdon,  

 

期刊: Cells Tissues Organs  (Karger Available online 1979)
卷期: Volume 105, issue 1  

页码: 94-105

 

ISSN:1422-6405

 

年代: 1979

 

DOI:10.1159/000145113

 

出版商: S. Karger AG

 

关键词: M. levator veli palatini;Prenatal morphology;human;Soft palate

 

数据来源: Karger

 

摘要:

The morphology of musculus levator veli palatini in the 15-week fetus was analyzed using 30-µm subserial sections. The sample included 26 specimens, of which 9 each were sectioned coronally and sagittally while 8 were sectioned in the transverse plane. At this stage of development m. levator veli palatini takes a general attachment to the precursor of the petrous part of the temporal bone, and, in some cases, auxilary attachments to the auditory tube complex were also observed. At its origin, the muscle is located anterior to the tube. It then runs medially, passing beneath the auditory tube prior to entering the velum. As it nears the region of the lateral pharyngeal wall, a small fascicle trails posteriorly and inferiorly to the main muscle mass and occasionally runs into the upper margin of m. constrictor pharyngis superior. The levator muscle is more localized within the velum at this stage of development than it has been reported to be in the adult, being confined here to the central third of the soft palate. Most of the fibers of the muscle appear to form a sling within the central 20% of the velum, although some were seen to take attachment to loose connective tissue and the palatine raphe. Upon its entry into the velum, m. levator veli palatini is intersected vertically by bundles of both mm.palatoglossus and palatopharyngeus

 

点击下载:  PDF (1604KB)



返 回