جستجوی مقالات مرتبط با کلیدواژه « middle ear » در نشریات گروه « زیست شناسی »

Backgroung & Buffalo has a special role in the economy of more than forty countries and theirs numbers and distributions is growing every year. The tympanic membrane is a thin membrane that separates the outer ear from the middle ear and this ossicle important in physiology and pathology. There is no anatomical and morphometrical research performed on this organ in buffalo. For this study 8 heads of  male and female buffalo were purchased from slaughterhouse and their tympanic membrane were studied anatomical and morphologically.  The anatomical results showed tympanic membrane was elliptical and white to pink white. Pars flaccida of tympanic membrane was small and triangle and in some cases was rectangle, in addition pars tensa of tympanic membrane was large and oval shape. The average measurement  of parameters showed the size of tympanic membrane in female is larger than male, and right side also was larger than left side. Statistical analysis Tukey showed these differences were not significant (p≤0/05).  The results of this research can be used as the basic knowledge in clinical research for buffalo.

The smallest bones in the body is located in the middle ear. It transmits air from the outer ear to the inner ear  and this ossicle important in physiology and pathology . There is no study performed on the histology of middle ear bones in the buffalo.

For this study, eight male and female buffalos heads were selected from the slaughterhouse. Then histological section was taken from the middle ear ossicles and histologically stained by haematoxylin-eosin staining. At the end the middle ear ossicles were studied histology  and the internal structure of the ossicels and joints between them was studied.

The histological results showed middle ear ossicles in buffalo was Compact bone and It has synovial joints.The joint between malleus bone and incus bone and The joint between incus bone and stapes bone had diarthrosis joint and a articular capsule covered the outside of the articular space. This articular capsule was thicker in the joint between the malleus bone and incus bone than the incus bone and stapes bone. Around the foot plate of the staped bone obseves annular ligament that connected the joints of the stapes bone to the ventral window.

The results of the present study can provide basic information for other researchers to physiology and pathology in this regard.