PT 701 Lecture 11 - Trunk and Back (Lecture Notes) PDF
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Biel (2014) and Moore et al. (2023)
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Summary
These lecture notes cover the anatomy and physiology of the trunk and back, including spinal movements, muscles, ligaments, and neurovascular structures. The notes include various diagrams and tables presenting information for further insights into the subject. They are likely lecture notes, relevant to a biomedical science or physiotherapy course or similar subject.
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Movements Spinal Movements – Relative Norms • Cervical • • • • Flexion – 60-65 degrees Extension – 60 -65 degrees Lateral Flexion – 45-50 degrees Rotation – 80-85 degrees • Thoracic • • • • Flexion – 25 degrees Extension – 20-25 degrees Lateral Flexion – 30 degrees Rotation – 45-50 degrees • Lum...
Movements Spinal Movements – Relative Norms • Cervical • • • • Flexion – 60-65 degrees Extension – 60 -65 degrees Lateral Flexion – 45-50 degrees Rotation – 80-85 degrees • Thoracic • • • • Flexion – 25 degrees Extension – 20-25 degrees Lateral Flexion – 30 degrees Rotation – 45-50 degrees • Lumbar • • • • Flexion – 60-65 degrees Extension – 20-30 degrees Lateral Flexion – 30 degrees Rotation – 15 degrees Savloskis Muscles Splenius Muscles Muscle Splenius Capitus Splenius Cervicis Origin Insertion Mastoid Process Inferior ½. Of of Lateral Ligamentum Nuchae Portion of and SPs of C7 to T4 Superior Nuchal LIne SPs of T3-T6 TPs of C1 to C3 Nerve Cervical Nerves (All essentially) Action Unilateral: Ipsilateral Rotate Head/Neck Ipsilateral Lateral Flex Bilateral: Extend Head/Neck Biel (2014) Muscles Intermediate Intrinsic – Erector Spinae Muscle Origin Insertion Iliocostalis Lumborum: Common Tendon Cervicis/Thoracis: Post. Surf. Ribs 1-12 Lumborum: TPs of L/S Vert 13, Post Surf. Ribs 6-12 Thoracis: Post. Surf Ribs 1-6 Cervicis: TPs of Lower Cervical Vert. Longissimus Lumborum: Common Tendon Cervicis/Capitis: TPs of T/S Vert. 1-5 Thoracic: Lower 9 Ribs and T/S Vert (4-12) Cervicis: TPs of C/S Vertebrae Capitis: Mastoid Process Spinalis Thoracis: SPs of Upper L/S and Lower T/S Vertebrae Cervicis: Ligamentum Nuchae, SP of C7 Thoracis: SPs of Upper T/S Cervicis: SP of all C2-C7 Nerve Action Unilateral: Lateral Flexion Spinal Nerves Bilateral: Extend the Vertebral Column Biel (2014) Muscles Deep Intrinsics - Transversospinales Muscle Origin Insertion Multifidi Sacrum and TPs of Lumbar to Cervical Vertebrae SPs of Lumbar Vertebrae to Cervical Vertebrae 2-4 up Rotatores Semispinalis Capitis TPs of Lumbar to Cervical Vertebrae SPs of Lumbar Vertebrae to Cervical Vertebrae 1-2 up TPs of C4 to T5 B/W Superior and Inferior Nuchal Lines Nerve Action Spinal Nerves Unilateral: Contralateral Rotation of Vertebrae Column Bilateral: Extend Vertebral Column Cervical Nerves Extend Vertebral Column and Head Biel (2014) Muscles Minor Deep Layer Muscle Interspinales Origin Insertion Nerve Cervical: Between SPs of C2-T3 Lumbar: Between SPs of T12 to L5 Extend the Vertebral Column Spinal Nerves Intertransversii Levator Costarum Cervical: Between TPs of C2-C7 Lumbar: Between TPs of L1-L5 TPs of T7-T11 Ribs Immediately Inferior to Origin: Between Tubercle and Angle Action Posterior Rami C8-T11 Nerves Unilateral: Ipsilateral Lateral Flex of Vert. Column Bilateral: Extend Vert. Column Elevate Ribs Biel (2014) Muscles Question A patient is doing an exercise in quadruped and is trying to resist rotation of the trunk. What muscles might be MOST active during this movement? • • • • A. Intertransversii B. Semispinalis C. Multifidi D. Interspinalis Ligaments/Cartilage Ligament Motion Restrictions • Flexion • Posterior Longitudinal Ligament, Inter/Supraspinous Ligaments, Costotransverse Ligaments, Ligamentum Flavum, Nuchal Ligament • Extension • Anterior Longitudinal Ligament • Rotation • Intertransverse Ligaments, Costotransverse Ligaments • Lateral Flexion (Sidebend) • Intertransverse Ligaments, Costotransverse Ligaments, Neurovascular Structures Nerve Roots and Branches Moore et al., (2023)
