The uvula is a vital organ of the craniofacial complex that is responsible for speech,swal-lowing,and mastication.It develops from the muscular component of the fourth pharyngeal arch during the first 6weeks of life.O...The uvula is a vital organ of the craniofacial complex that is responsible for speech,swal-lowing,and mastication.It develops from the muscular component of the fourth pharyngeal arch during the first 6weeks of life.Over the next 1 to 2wecks mesodermal tissues migrate and differentiate within the arch before organizing to form the specific muscle fibers that constitute the uvula muscle.It is the only intrinsic muscle of the soft palate;it is a paired,thin,sagit tally oriented muscle that occupies the most medial and nasal position of the soft palate,occupying the posterior three-quarters of the velum.展开更多
文摘The uvula is a vital organ of the craniofacial complex that is responsible for speech,swal-lowing,and mastication.It develops from the muscular component of the fourth pharyngeal arch during the first 6weeks of life.Over the next 1 to 2wecks mesodermal tissues migrate and differentiate within the arch before organizing to form the specific muscle fibers that constitute the uvula muscle.It is the only intrinsic muscle of the soft palate;it is a paired,thin,sagit tally oriented muscle that occupies the most medial and nasal position of the soft palate,occupying the posterior three-quarters of the velum.
