The occipital bone of skull can be described as being perforated by the foramen magnum with the basilar part in front, the squamous part behind and the condylar parts lateral to the foramen magnum1.
Persistence of canal on basilar part of clivus is a rare congenital defect of skull base representing an embryological remnant depicting the cephalic end of the notochord and corresponds to the course of the notochordal canal in the basiocciput caudally.
Because the notochord determines the development not only of the body of the atlas vertebra, but also of the basilar part
of the occipital bone, which is the posterior part of the cranial base angle, it is possible that the cranial base angle is associated with deviations in the atlas vertebrae.
Important causes of damage to the basilar part
of CN VI
The intestinal crypt and epithelium mucosae of mammals was divided into the five regions, including the region of the stem cell and Paneth's cell in basilar part, the region of proliferation cell in the middle part of intestinal gland, the region of maturation in upper half of intestinal gland, function region and shedding part of upper half of intestinal villus.
The signals of ISHH were decreased from basilar part to upper in the crypt of lieberkuhn and disappeared in the inferior of villi of small intestine.
The basilar part
of the occipital bone was straight, bound rostro-caudally by two pairs of muscular tubercles, out of which the caudal pair were larger (Fig.
Anterior arch of atlas was partially fused with anterior margin of foramen magnum leaving a slit like gap measuring 16mm transversely between it and the basilar part of occipital bone.
Anterior arch of atlas was partially fused with anterior margin of foramen magnum except for a small foramen in the midline between it and the basilar part of occipital bone.
The occipital bone is perforated by the foramen magnum with the squamous part behind the foramen, the condylar parts lateral and the basilar part
Areas of myelinolysis are hypoattenuating usually located within the basilar part
of pons and they lack mass effect.
MATERIAL AND METHODS: The present study was conducted on 30 skull bones in department of Anatomy of our college and observed for assimilation of atlas vertebrae with basilar part