STUDY OF THE AGE AND COMPARATIVE ANATOMY ABOUT THE ACTON OF LEVATOR AND TENSOR VELI PALATI MUSCLESON THE EUSTACHIAN TUBE
- VernacularTitle:腭帆提肌腭帆张肌开放咽鼓管作用的年龄解剖学和比较解剖学研究
- Author:
Jiang PING
;
Tong XINKANG
;
Ouyang QI
;
Lu LIWEI
;
Chen KESHENG
- Publication Type:Journal Article
- Keywords:
Eustachian tube;
Levator veli palati muscle;
Tensor veli palati muscle;
Skull measurements;
Comparative anatomy;
Age anatomy
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The attachments of eustachian tube, levator and tensor veli palati muscles on the base of the skull were measured from the skulls of human adults, infants, newborns ad well as monkeys, dogs and rabbits, respectively. Anatomical characteristics of the levator and tensor veli palati muscles that related to eustachian tubal ventilation and skull morphology were analysed. In addition, some head specimens were dissected for contrast. Levator veli palati muscle (LVPM) lies in the posterioinferior of the eustachian tube. The angles between LVPM and median saggital plane and the angles between LVPM and horizontal plane of palate are larger and their ability of raising the eustachian tube is more effective in the adult than in the newborn and animal. From the eustachian tube to the hamulus, tensor veli palati muscle (TVPM) descends almost vertically in the adult, but ventroward in the newborn and animals, which suggested their different actions upon eustachian tube. The skull morphology of the human adult differs from child and animal, which changes the position and function of LVPM and TVPM. In conclusion, eustachian tube was opened by LVPM chiefly in the adult while by TVPM in the newborn and animal. The incidence of otitis media with effusion is higher in the infant as it is the trasitional stage that the action of TVPM had been decreased while that of LVPM would not have been established.
