Pharyngeal arches are bilaterally symmetric ventral structures that develop in a segmental fashion along the anteroposterior axis during embryogenesis (1). The first pharyngeal arch (PA1), which ...

The upper (green) and lower (blue) elements in the first pharyngeal arch form the primary jaw joint (red circle). (Top) Reptiles/birds. The schematic on the left shows the eardrum forming between ...

as well as into the forehead region and first pharyngeal arch, and contribute to the brain-case, nose and jaws. By contrast, cells from the remaining rhombomeres fill the second, third and fourth ...

MHC-M is found in jaw-closing muscles derived from the first pharyngeal arch of certain vertebrate species, most often carnivorous species or omnivorous species, or species that feed on nuts or other ...

The first and second pharyngeal arches' defective development is the root of the problem. Although the origin of OAVS is not yet identified, it is likely complex. Due to the wide range of ...

During development, jaws and gills both arise from embryonic structures called "pharyngeal arches." The first of these arches is called the mandibular arch because it gives rise to jaws ...

Craniofacial abnormalities often arise during formation of the pharyngeal arches destined to give rise to many craniofacial structures. The complexity of arch derivatives is reflected in their ...

Researchers have hypothesized that the pharyngeal arch evolved from an unjointed cartilage ... than previously thought," said TIAN Qingyi, the first author of the study, from Nanjing University ...