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These are two in number. The anterior, Ductus incisi'vus seu Nasa'lo-palati'nus, Inci'sive canal, is situate at the anterior part of the palatine arch, and is formed by the two superior maxillary bones. It is single beneath, but opens above by two apertures, one into each nasal fossa. The foramen is called Fora'men incisi'vum seu Palati'num ante’rius seu Alveola’re ante'rius seu caecum assis maxilla'ris superio’ris. The posterior palatine canal is situate at the posterior part of the palate. It is formed by the palate and superior maxillary bones, ascends between these two bones, and, in its course, gives rise to two or three small accessory palatine canals, which open above the tuberosity of the palate bone. It transmits the nerves and vessels which bear its name. The foramen is called, F. Palati'num poste’rins seu Palatomaxilla're seu alveola're paste'rius.