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Spine Outline Sports Med 2. Anatomy  Bones of the Vertebral Column  33 vertebrae  24 movable (true)  9 immovable (false)  Movable  Cervical, thoracic,

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Presentation on theme: "Spine Outline Sports Med 2. Anatomy  Bones of the Vertebral Column  33 vertebrae  24 movable (true)  9 immovable (false)  Movable  Cervical, thoracic,"— Presentation transcript:

1 Spine Outline Sports Med 2

2 Anatomy  Bones of the Vertebral Column  33 vertebrae  24 movable (true)  9 immovable (false)  Movable  Cervical, thoracic, lumbar  Immovable  Sacrum, coccyx

3 Cervical Spine  7 Vertebrae  C1 Atlas  Supports head  Has no body or spinous process  Movements = flexion, extension, lateral movements  C2 Axis  Allows rotation

4 Thoracic Spine  12 Vertebrae  Articulate with the ribs

5 Lumbar Spine  5 vertebrae  Major support of the low back  Largest and thickest

6 Sacrum Coccyx  Fusion of 5 vertebrae in adults  Sacroiliac joint  While sitting weight is transmitted through these joints  Also known as the tailbone

7 Intervertebral Disks  Between each of the cervical, thoracic, and lumbar vertebrae lies disks  Each disk is composed of annulus fibrosus and the nucleus pulposus  Annulus fibrosus  Forms the periphery of the disk  Composed of strong, firbrous tissue  Nucleus pulposus  In the center of the annulus fibrosus  Shock absorption

8 Ligamentous Structures  Anterior longitudinal ligament  Wide strong band extends the full length of the anterior surface of vertebrae  Posterior longitudinal ligament  Inside the canal and extends the full length of the posterior aspect  Supraspinous  Connects spinous processes

9 Muscles of the Spine  Superficial  Erector spinae  Extends the spine  Deep  Go from vertebrae to vertebrae  Extend and rotate the spine  multifidus

10 Spinal Nerves and Peripheral Branches  31 pairs of spinal nerves  Each has specific area of sensory called dermatomes  Loss of sensation = nerve damage  Nerves form a plexus

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12 Movements of the verterbral column  Flexion  Extension  Right and left lateral flexion  Rotation to the left and right

13 Preventing Injuries to the Spine  Cervical  Can be life threatening  Strengthening is critical  Bull the neck  Isometric, isotonic, isokinetic contractions can be used  Watch for spearing

14 Preventing injuries to the spine  Lumbar  Low back pain is the most common  Avoid unnecessary strain  Be aware of posture anomalies of the athlete  Abdominal strength is essential


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