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The Neck: Musculature and Bony Anatomy.  Bony Framework  7 cervical vertebrae  Atlas (C1)  Axis (C2)  C3 - C7.

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Presentation on theme: "The Neck: Musculature and Bony Anatomy.  Bony Framework  7 cervical vertebrae  Atlas (C1)  Axis (C2)  C3 - C7."— Presentation transcript:

1 The Neck: Musculature and Bony Anatomy

2  Bony Framework  7 cervical vertebrae  Atlas (C1)  Axis (C2)  C3 - C7

3  Atlas  1 – Articular process  2 – Transverse process  3 – Posterior arch

4  Axis  1 – Dens/Odontoid process  2 – Spinous process

5  Cervical Vertebra  1 – Transverse foramen  2 – Body  3 – Vertebral foramen  4 – Transverse process  5 – Spinous process  6 – Articular process

6  Palpation of bony anatomy  Spinous process; vertebra prominens (C7)  Transverse process

7  Palpation of Bony Anatomy  Hyoid bone  Clavicle  Thyroic cartilage  Cricoid cartilage

8  Intervertebral Discs  Annulus fibrosus  Nucleus pulposus  Shock absorbers for spine

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10  Nerves of the Cervical Spine  7 vertebrae, but 8 nerves  Emerge above corresponding vertebra, except C8 nerve  Brachial plexus – C5-T1  Myotomes and Dermatomes

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13 NERVEMYOTOME C5Shoulder Abduction C6Elbow Flexion, Wrist Extension C7Elbow Extension, Wrist Flexion C8Thumb Extension, Ulnar Deviation

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15  Muscles of the Neck MUSCLEORIGININSERTIONACTION TrapeziusOcciput, Nuchal ligament, SP of C7- T12 Lateral clavicle, Acromion, Spine of scapula Extends, Ipsi lateral flex, Contra rotation Levator ScapulaeTP C1-C4Medial border of scapula Extends, Ipsi lateral flex, elevate scapula SternocleidomastoidSternal: manubrium Clavicular: medial 1/3 of clavicle Mastoid processFlexes, Ipsi lat flex, Contra rotation

16 MUSCLEORIGININSERTIONACTION Anterior ScaleneTP C3-C61 st ribIpsi lat flex, Elevate 1 st rib Middle ScaleneTP C2-C71 st ribIpsi lat flex, Elevate 1 st rib Posterior ScaleneTP C5-C72 nd ribLat flex, Elevate 2 nd rib Longus Colli and Longus Capitus Ant TP C1-C6OcciputFlexion Rectus CapitisTP C1OcciputFlexion, Lat flexion

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19 The Neck: Common Injuries and Problems

20  Pain Generators  Myogenic  Discogenic  Facet joint, Arthritic  Stenotic (central canal, neuroforamen)  Neurogenic

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29 Questions??


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