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Lesley A. Zwicker, BScPharm, DVM The Spine & Pelvis
Cervical Spine C1C1
Structures of C 1 Lateral Vertebral Foramen
Structures of C 1 Transverse Process
Structures of C 1 Dorsal Arch
Structures of C 2 Transverse Foramen
Structures of C 2 Transverse Process
Structures of C 2 Dorsal Atlanto-axial Ligament
Structures of C 1 Alar Notch
Structures of C 1 Transverse Foramen
Structures of C 2 Dens
Structures of C 2 Transverse Process
Dorsal Spinal Process C2 Dorsal arch C2 should over lap C1 C2C2 C1C1
Features of the Cervical Spine Dorsal Spinous Process
Features of the Cervical Spine Transverse Process
Features of the Cervical Spine Caudal Articular Process C 5
Features of the Cervical Spine Cranial Articular Process C 6
Features of the Cervical Spine Synovial Joint at C 5-6
Ventral Process of C 6 Large lamina ventral to the transverse process of C 6 C7C7 C6C6 C5C5
Disc space at C 2-3 The disc space at C 2-3 is normally narrowed compared to other disc spaces C2C2 C3C3 C4C4 C5C5
Other Normally Narrowed Disc Spaces C 7 T 1 T
Dorsal Spinous Process C 7 The dorsal spinous process of C7 is larger than other cervical vertebrae C7C7 C6C6 C5C5
Location of Rib Articulation The ribs articulate with the cranial aspect of the corresponding numbered vertebral body
Location of Rib Articulation The ribs articulate with the cranial aspect of the corresponding numbered vertebral body T th Ribs Articulation L1L1 L2L2 T 12
Anticlinal Vertebra T 11 The anticlinal vertebra is useful to determine vertebral body number
Anticlinal Vertebra T 11 Dorsal spinous process is straight up. T 11 T 12 T 10
Anticlinal Vertebra T 11 Note the change in appearance of the dorsal facets at T vs T 9-10 T 13 T 10 T 11 T 12
Anticlinal Vertebra T 11 The facet between T 9-10 has a thin slit like appearance. T 13 T 10 T 11 T 12 T9T9
Anticlinal Vertebra T 11 The facet between T is the first to have a large bulb like articular process T 13 T 10 T 11 T 12
Features of the Thoracic Spine Cranial Costal Fovea
Features of the Thoracic Spine Head of the right 13 th rib
Features of the Thoracic Spine Intercapital ligaments run from rib head to rib head
Features of the Thoracic Spine Notice the location of the intercapital ligament is superimposed over the vertebral body at these sites
Features of the Thoracic Spine The intercapital ligament provides additional support which makes thoracic disc herniation rare at this disc space and all thoracic disc spaces from here cranially.
Features of the Lumbar Spine Body of L 4 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Pedicle and Dorsal Lamina of L 4 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Intervertebral Foramen of L 3-4 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Intervertebral Disc of L 3-4 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Caudal Articular Process of L 3 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Cranial Articular Process of L 4 L1L1 L4L4 L3L3 L2L2
Features of the Lumbar Spine Dorsal Spinous Process of L 3
Features of the Lumbar Spine Transverse Process of L 4
Features of the Lumbar Spine Transverse Process of L 4
Features of the Lumbar Spine Dorsal Spinous Process of L 4
Features of the Lumbar Spine Caudal Articular Process of L 2
Features of the Lumbar Spine Cranial Articular Process of L 3
Features of the Lumbar Spine Synovial Joint of L 2-3
Transverse Process Confused as Mineralized Disc The transverse process overlay the disc spaces giving the appearance of increased opacity in the disc
Accessory Process The accessory process overlay the intervertebral foramen and results in increased opacity within the neural canal
Attachment of diaphragmatic crura The ventral bodies of L 3 and L 4 and fuzzy due to crura attachment
Common View for the Pelvis Ventro-dorsal projection Lateral projection Frog-legged projection
Positioning for the Pelvis
The Pelvis Ilium – cranial Ischium - caudal sacrum coxofemoral joint obtruator foramen femur
The Pelvis ischiatic tuberosity iliopubic eminence
The Pelvis ilium femoral head ischiatic tuberosity ischium pubis obtruator foramen acetabulum
Questions?? Concerns?? Cries of Anguish?? Thank you to Dr. LeeAnn Pack and Nick Urbanek for providing images for this presentation
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