ANATOMY

Detailed explanation-1: -The maxillary processes will also grow and meet the lateral nasal processes and extend midline to meet the medial nasal processes. This fusion with the medial nasal process will form the inter-maxillary process and result in the eventual formation of the philtrum of the upper lip.

Detailed explanation-2: -The three bony structures that help form the cheek are the zygomatic bone, the maxilla bone, and the mandibular bone. The zygomatic bone and the maxilla bone makes up the superior bony region of the cheek. The maxilla bone also makes the medial bony region of the cheek.

Detailed explanation-3: -Facial development includes the formation of the primitive mouth, mandibular arch, maxillary process, frontonasal process, and nose.

Detailed explanation-4: -The face develops from five primordia that appear in the fourth week: the frontonasal prominence, the two maxillary swellings, and the two mandibular swellings. The buccopharyngeal membrane breaks down to form the opening to the oral cavity. origin. a pair of lateral nasal processes.

Detailed explanation-5: -The maxillary and mandibular processes are derived from the first branchial arch. The first branchial arch, also termed the mandibular arch, forms the lateral wall and base of the stomadeum, the primitive mouth that appears as a slight depression of the ectoderm surface.