maxilla
/mækˈsɪlə/ (bre, ipa) · /mækˈsɪlə/ (ame, ipa) · /mak-ˈsi-lə/ (ame, mw)
maxilla — 名詞
- maxillasingular
- maxillaeplural
1. One of the two fused bones that make up the upper jaw in humans and other mammal
上頷骨
構成上顎的骨骼
One of the two fused bones that make up the upper jaw in humans and other mammals. It holds the upper teeth in position and contributes to the lower rim of both eye sockets, along with the sides and floor of the nasal cavity.
After falling off his bicycle, eight-year-old Jun fractured his maxilla and had to have surgery.
Jun 從腳踏車上摔下來後，八歲的他上頷骨骨折，必須接受手術。
fractured maxilla — common injury context
The CT scan showed that the tumour had spread from the palate into the left maxilla.
電腦斷層掃描顯示腫瘤已從上顎擴散到左側上頷骨。
medical context: maxilla as anatomical location
Orthodontists sometimes recommend surgery to move the maxilla forward when a child has a severe underbite.
當兒童有嚴重的下顎前突（戽斗）時，矯正牙科醫師有時會建議透過手術將上頷骨前移。
In mammals the maxilla is the largest facial bone and holds the roots of all upper teeth.
在哺乳類動物中，上頷骨是臉部最大的骨骼，容納了所有上排牙齒的牙根。
Dr. Okafor examined the fossilised maxilla and counted the teeth to estimate the animal's age.
Okafor 醫師檢查了那塊上頷骨化石，並數了牙齒數量以判斷這隻動物的年齡。
- mandible
the lower jaw bone; the counterpart of the maxilla.
文法句型
the maxilla
a fractured maxilla
用法筆記
In everyday conversation, English speakers usually say 'upper jaw' instead of 'maxilla'. The term 'maxilla' is most common in medical, dental, and anatomical writing.