以下は「Wikipedia」の解説文の要約となる。（上記で解説との重複は除く）
【上面】
・横に凹状となる。
・滑らかである。
・鼻腔底のほとんどを構成する。
・前部内側に切歯管に通じる孔がある。
【内側縁】
・後方よりも前方の方が骨厚がある。
・隆起線（鼻稜）となっていてもう一方の上顎骨と接合して鋤骨をのせる。
・鼻稜の前部は隆起していて切歯稜と呼ばれる。
・切歯稜の前端は前部に突出して前鼻棘となる。
以下は「Wikipedia」の解説文となる。
In human anatomy of the mouth, the palatine process of maxilla (palatal process), is a thick, horizontal process of the maxilla. It forms the anterior three quarters of the hard palate, the horizontal plate of the palatine bone making up the rest.
【Structure】
It is perforated by numerous foramina for the passage of the nutrient vessels; is channelled at the back part of its lateral border by a groove, sometimes a canal, for the transmission of the descending palatine vessels and the anterior palatine nerve from the spheno-palatine ganglion; and presents little depressions for the lodgement of the palatine glands.
When the two maxillae are articulated, a funnel-shaped opening, the incisive foramen, is seen in the middle line, immediately behind the incisor teeth.
In this opening the orifices of two lateral canals are visible; they are named the incisive canals or foramina of Stenson; through each of them passes the terminal branch of the descending palatine artery and the nasopalatine nerve.
【 語 句 】
・maxilla：上顎骨 ・hard palate：硬口蓋 ・palatine bone：口蓋骨 perforate：貫通する ・foramina：foramen（孔）の複数 ・nutrient：栄養 ・descending palatine vessels：下行口蓋動・静脈 ・anterior palatine nerve：前口蓋神経？ ・spheno-palatine ganglion：蝶口蓋神経節 ・palatine gland：口蓋腺 ・funnel-shaped：漏斗状の ・incisive foramen：切歯孔 ・incisor teeth：切歯 ・orifice：開口部 ・incisive canal：切歯管 ・nasopalatine nerve：鼻口蓋神経
On the under surface of the palatine process, a delicate linear suture, well seen in young skulls, may sometimes be noticed extending laterally and forward on either side from the incisive foramen to the interval between the lateral incisor and the canine tooth.
The small part in front of this suture constitutes the premaxilla (os incisivum), which in most vertebrates forms an independent bone; it includes the whole thickness of the alveolus, the corresponding part of the floor of the nose and the anterior nasal spine, and contains the sockets of the incisor teeth.
・The upper surface of the palatine process is concave from side to side, smooth, and forms the greater part of the floor of the nasal cavity. It presents, close to its medial margin, the upper orifice of the incisive canal.
・The lateral border of the process is incorporated with the rest of the bone.
・The medial border is thicker in front than behind, and is raised above into a ridge, the nasal crest, which, with the corresponding ridge of the opposite bone, forms a groove for the reception of the vomer. The front part of this ridge rises to a considerable height, and is named the incisor crest; it is prolonged forward into a sharp process, which forms, together with a similar process of the opposite bone, the anterior nasal spine.
・The posterior border is serrated for articulation with the horizontal part of the palatine bone.
【Variation】
Occasionally two additional canals are present in the middle line; they are termed the foramina of Scarpa, and when present transmit the nasopalatine nerves, the left passing through the anterior, and the right through the posterior canal.
【 語 句 】
・linear：直線の ・suture：縫合 ・canine tooth：犬歯 ・constitute：構成する ・premaxilla：前上顎骨、 切歯骨 ・alveolus：歯槽 ・anterior nasal spine：前鼻棘 ・concave：凹状の ・nasal cavity：鼻腔 ・ridge：隆起(線) ・nasal crest：鼻稜 ・vomer：鋤骨 ・incisor crest：切歯稜 ・serrate：ノコギリ状の ・palatine bone：口蓋骨 ・foramina of Scarpa：スカルパ孔
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