Term
| Identification of Lumbar Vertebra |
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Definition
1- Large Size of Body
2- Costal Facets are absent |
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Term
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Definition
| Height is greater Anteriorly than Posteriorly. This makes the Lumbar spine convex forwards |
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Term
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Definition
| Triangular in shape. Foramen is larger than Thoracic. Smaller than Cervical. |
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Term
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Definition
Located at Posteroinferior Aspect of Root of Transverse Processes.
They are called "True Transverse Processes" |
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Term
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Definition
Concave Facet facing medially and Backwards
Mammilary process at post Border |
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Term
| Inferior Articular Processe |
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Definition
| Convex Facet facing forwards and laterally |
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Term
| Typical Vertebra VS Atypical Vertebra |
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Definition
Transverse process are THIN AND TAPERING. Whereas in Atypical, Transverse processes are THICK, SHORT, PYRAMIDAL.
2. Spine is longer, without Articular facet. In Atypical, Spine is SMALL, SHORT, and has ARTICULAR FACET for Sacrum
3. Bodies comparatively smaller. In Atypical, body is LARGER. Anterior Surface is deeper than Posterior. This gives them a SHARP LUMBOSACRAL ANGLE.
4- Superior articular Facet is backwards and medially. In Atypical, Superior Articular facet is MORE BACKWARDS.
5- Inferior Articular facet is forwards and laterally. In Atypical, Inferior Articular facet : MORE FORWARDS |
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Term
| Attachments on the Body of Lumbar Vertebra |
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Definition
1- Intervertebral Disk
2- Anterior and Posterior Longitudinal Ligaments
3- Right Crus of Diaphragm (upper 3 vertebra)
Left Crus of Diaphragm (Upper two Vertebra)
4- Psoas Major Muscle
5- Tendinous Arches |
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Term
| Contents of lumbar Vertebral Canal |
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Definition
1- Spinal Meninges
2- 1st lumbar vertebra contains CONUS MEDULLARIS
3- lower four vertebrae contain CAUDA EQUINA |
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Term
| Attachments of Lumbar Vertebral Arch |
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Definition
Lamina : Ligamentum Flava
Spine : Posterior layer of Lumbar Fascia, Interspinous ligament, Supraspinous ligament, Erector Spinae, Multibifidus, interspinal muscles
Transverse Processes :
Tip : Attachment to the middle layer of Lumbar Fascia. Tip of first lumbar vertebrae gives attachment to Lateral and Medial Arcuate ligament. and Tips of last lumbar vertebra gives attachment to Iliolumbar ligament.
2. Anterior Surface of Transverse process has a faint ridge for the attachment of Anterior layer of lumbar fascia. Medial to this ridge, is the attachment of PSOAS MAJOR and lateral to this ridge is the attachment of Quadratus Lumborum.
Posterior Surface gives attachment to : muscles of the back, including LONGISSIMUS THORACIS. Accessory process gives attachment to medial intertransverse muscle and upper and lower borders provide attachment to LATERAL INTERTRANSVERSE muscles.
Mamillary process gives attachment to multifidus and medial intertransverse muscles. |
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Term
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Definition
Caused by Fracture Dislocation of lumbar vertebrae
FAID
Flaccid paraplegia
Analgeisa and Anaesthesia
Impotence
Disturbance of Sphincter- Incontinence of urine and feaces |
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Term
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Definition
Between Vertebral Bodies : Secondary Cartilaginous joints - Intervertebral Disc and Anterior and Posterior Longitudinal Ligaments
Joints of Vertebral Arches : Plane Synovial Joints - Gliding Movements - Accesorry ligaments include : Interspinous, intertransverse, suprapinous ligaments and ligamentum flava
Lumbar spine permits MAXIMUM EXTENSION, considerable amount of flexion and lateral flexion, and LEAST Rotation |
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