WebAtlanto-axial instability is a congenital condition caused by abnormal articulation between the first cervical vertebrae (aka: the atlas) and the second cervical vertebrae (aka: the axis). The most common cause of the instability is malformation of a portion of the axis called the dens, which sits in a groove at the base of the axis. WebThe first two cervical vertebrae are named the atlas (C1) and the axis (C2). Unlike all other vertebrae, the atlas and axis of most mammals are not separated by an intervertebral disk but rather by a synovial joint, similar to the skull-atlas joint (Fig. 4A); the shapes of these first two vertebral joints dictate the range of motion between the skull and the vertebral column.
Ossification of the atlas-axis complex in the dog - PubMed
WebThe atlanto-occipital joint is a condylar modified synovial hinge joint. The capsule of the joint is strengthened by three thickenings: dorsal, ventral, and lateral. The transverse process … WebMar 9, 2014 · Cervical vertebrae: -1st vertebra is called atlas. -2nd vertebra is called axis -The last vertebra has articulation surface for 1st rib. 10. Atlas Axis 11. Radiology: 12. Thoracic vertebrae: -It is characterised by long … flower mound zip code tx
Incomplete ossification of the atlas in dogs with cervical signs
WebDec 26, 2024 · Again, there is a caudal articular fovea containing two shallow glenoid cavities. You know the cranial articular fovea of the dog atlas articulates with the … WebFeb 16, 2024 · Atlantoaxial instability is characterized by abnormal movement in the neck, specifically between the atlas and axis. The two main causes of AAI are trauma and congenital anomalies. The most … WebAnimal Atlas is a half-hour educational wildlife television series that "takes children on a tour of discovery, uncovering the secrets of how animals live and thrive. Young viewers meet … green air freshener spray