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What is the function of the vertebral column?
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How many cervical vertebrae doe a typical person have?
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Cervical
CT/MR Cervical Spine
| Question | Answer |
|---|---|
| What is the function of the vertebral column? | helps to maintain posture; protects the spinal cord and nerves |
| How many cervical vertebrae doe a typical person have? | 7 |
| What is the inherent curvature of the cervical spine? | lordotic curve |
| What are the two main parts of the cervical vertebrae? | the vertebral body and the vertebral arch |
| What is the largest and heaviest portion of the cervical vertebrae? | the vertebral body |
| What are the 11 components of the vertebral arch? | 2 pedicles; 2 laminae;1 spinous process;2 transverse processes; 2 inferior articular process; 2 superior articular process |
| What is the name of the opening created by the vertebral body and arch? | Vertebral foramen |
| What is the name for the succession of the vertebral foramen in the spinal column? | The vertebral canal |
| What structure forms the lateral walls of the vertebral foramen? | pedicles |
| The superior and inferior articular concave surfaces of successive pedicles in the spine form what spinal opening? | the intervertebral foamina |
| What structures are found int he vertebral foramina? | spinal nerves and vessels |
| What structure is found within the vertebral foramen? | the spinal cord |
| What forms the posteriorlateral walls of the vertebral foramen? | Lamina |
| What vertebral arch structure comes together to form the spinous process? | lamina |
| What is the pathological condition where the lamina fail to unite posteriorly? | spina bifida |
| What is the function of the spinous process? | site of muscle attachment for the back |
| What is the unique identifier of the cervical spinous process? | the spinous process is bifid from C2-C6 |
| What vertebral arch structure contains the transverse foramina? | the transverse process |
| What structure passes through the transverse foramina? | vertebral arteries and veins |
| When structure is formed from the union of a superior articular process of one vertebrae and the inferior articular process of another vertebrae above it? | zygapophyseal joint |
| What cervical ligament helps to prevent hyperextension of the vertebral column? | anterior longitudinal ligament |
| What cervical ligament helps to prevent hyperflexion of the vertebral column? | posterior longitudinal ligament |
| What cervical ligament helps to preserve the normal curvature of the spine? | ligamentum flava |
| What vertebral arch structure does the ligamentum flava join together? | the lamina of adjacent vertebra |
| What is the function of the zygapophyseal joint? | to support and allow movement of the vertebral column |
| What are the shock absorbing cartilaginous structures in the cervical spine called? | intervertebral disc |
| What is the name for the concentric rings of fibrous tissues that forms the outside of the intervertebral disc? | annulus fibrosis |
| What is the name for the soft; semigelatinous material in the center of the intervertebral disc ? | nucleus pulposus |
| What is the name of the condition where the soft center area of the intervertebral disc ruptures through the fibrous rings? | herniated nucleus pulposus |
| What set of nerve roots carry sensory signals? | posterior (dorsal) nerve roots |
| What set of nerve roots carry motor signals? | anterior (ventral) nerve roots |
| What is a graphical display of spinal nerve cutaneous sensations? | dermatome map |
| What is the name of the first cervical vertebrae? | atlas |
| What is the function of the atlas? | supports the head |
| What is the name of the second cervical vertebrae? | axis |
| What is the name of the process that projects upward into C1? | the odontoid process (dens) |
| Approximately how long is the odontoid process? | 1.5 CM long |
| What is an intersecting network of nerves called? | nerve plexus |
| What nerves comprise the cervical nerve pelxus? | C1-c4 |
| What is the function of the cervical nerve plexus? | to innervate the neck, lower part of the face/ear, the side of the scalp and the upper thoracic area |
| What is the largest nerve of the cervical plexus? | phrenic nerve |
| What is the name of the fracture where the anterior and posterior arches of C1 are fractured? | Jeffersons fracture |
| What is the name of the C2 fracture where there is a bilateral fracture of the lamina and pedicle? | Hangman's fracture |
| What is the name of the fracture when the lower level spinous processes are broken? | Clay-shoveler fracture |
| What is the name of the pathology where the spinal disc is coming out of its normal space but the posterior longitudinal ligament is intact? | disc protrusion or bulge |
| What is the name of the pathology where the nucleolus pulpous squeezes out of its space through a torn annulus fibrosis? | disc extrusion or herniation |
| What is the name of the pathology where the nucleus pulposus separates from the disc into the spinal canal? | disc sequestration |
| What is the name of the pathology where the intervertebral disc loses hydration? | disc dessication |
Created by:
jacook3
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