Morphological analysis and morphometry of the foramen magnum of the american Staffordshire terrier breed newborns

摘要

The aim of the investigations was the description of foramen magnum morphology. Fourteen skulls of American Staffordshire terrier pups were examined. The morphology of the foramen magnum was described, its height and width were measured, and the indexof the foramen magnum (width/height x 100) was calculated. The height of the skull, maximum width and maximum height of the occipital condyle were also measured. In all the examined skulls the shape of the foramen magnum was regular and ellipsoidal. Theaverage height of the foramen magnum was 5.7 mm, the average width - 6.05 mm. The value of the foramen magnum index was 106.82. The average skull height was 22 mm. The average maximum height of the occipital condyle was 5.33 mm and its average maximum width was 2.85 mm. There were no differences between females and males in all parameters. The shape of the foramen magnum was regular. The occipital condyli were symmetrical.