Vertebrae 1 Flashcards
What are the four main functions of skeleton?
Posture, locomotion, attachment, and protection
Name the three categories of skeleton
Axial, appendicular, and splanchnic skeleton
Name the six common features of vertebrae
Vertebral body, arch, spinous process, articular process, transverse process, and vertebral canal
Name the two components that make up vertebral arch
Pedicle and lamina
Another name for Intervertebral joint
Symphysis
What is symphysis made of?
Intervertebral disc
What is intervertebral disc made of?
Hyaline ligament, annulus fibrosus, and nucleus pulposus
Describe the features of annulus fibrosis
Fiberous and ring-like CT fused with hyaline lig.
Describe the feature of nucleus pulposus
Gel-like substance which helps absorb impacts
Name the processes that lie on the dorsal aspect of vertebral bodies
Spinous processes
Name the processes that lie on the lateral aspect of vertebral bodies
Transverse processes
Name the processes that lie on the crano/caudoventral aspect of vertebral bodies
Articular processes
Name the sites that form joints between arches
Articular facets
Name the joints between arches
Synovial joints
What are the three main functions of transverse and spinous processes?
Vertebral stability, visceral protection, and locomotion
The mobility of vertebral column depends on articular facets’ ….. and …..
orientation and size
Name the orientation of articular facets that are found in cranial aspect of thoracic vertebrae and cervical vertebrae
State what movement it enables
Tangent orientation; rotation and lateral extension/flexion
Name the orientation of articular facets that are found in caudal aspect of thoracic vertebrae and lumbar vertebrae
State what movement it enables
Radial orientation; extension and flexion
Name C1
Atlas
What are three main features of C1?
No vertebral body, have dorsal and ventral arches, and large palpable transverse wings
Name C2
Axis
What are four main features of C2?
Large and robust spinous process, large cranial articular facet, longest vertebra, and dens (odontoid peg)
Describe the three main features of thoracic vertebrae
Small vertebral body, small transverse process, and large spinous process
Name the facets which form articulations with ribs
Costal facets