Musculoskeletal Anatomy table

Musculoskeletal Anatomy table - 1 Musculoskeletal Anatomy...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Musculoskeletal Anatomy of the Posterior Neck and Scalp : *remember that there may be differences by one or two vertebra depending on where you get your info. Musculature of the Back Muscle Origin Insertion Innervation Blood Supply Action 1) Splenius Capitus Ligamentum nuchae Spinous processes: C7-T3 -Mastoid process of temporal bone -Superior nuchal line. Dorsal rami of lower cervical spinal nerves. Deep cervical a. (comes off costal costocervical trunk) & Posterior intercostals arteries. Bilateral : extension of head and neck. Unilateral : lateral flexion and rotation of head to same side. 2) Splenius Cervicis Spinous processes T3-T6 Transverse processes C1-C3 Dorsal rami of lower cervical spinal nerves Deep cervical a. (comes off costal costocervical trunk) & Posterior intercostals arteries. Bilateral : extension of head and neck. Unilateral : lateral flexion and rotation of head to same side. *splenius capitus & splenius cervicis: fibers run superiolaterally 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 3) Erector Spinae Muscles: arise from common broad tendon (thoracolumbar aponeurosis) on lower back (splits into 3 muscles) Muscle Origin Insertion Innervation Blood Supply Action A) Iliocostalis (most lateral) Lumborum Thoracis Cervicis L : common tendon. T : angles of lower ribs 6-12. C : angles of ribs 3-6. L : angles lower 6 ribs T : angles upper 6 ribs & transverse process C7 C : transverse processes C4-C6 Dorsal rami of spinal nerves. Segmentally : deep cervical, posterior intercostals, subcostal and lumbar arteries. Bilateral : extension of head and vertebral column. Unilaterally : lateral flexion of neck and vertebral column. B) Longissimus (middle layer) Thoracis Cervicis Capitis T : common tendon, transverse processes L1-L5. Cer : transverse process T1-T12. Cap : C4-C7 & TP of T1-T5. T : ribs 3-12. Cer : transverse processes C2-C6. Cap : mastoid. Dorsal rami of spinal nerves. Segmentally : deep cervical, posterior intercostals, subcostal and lumbar arteries. Bilateral : extension of head and vertebral column. Unilaterally : lateral flexion of neck and vertebral column. C) Spinalis (most medial) Thoracis Cervicis Capitis T : spinous processes T11-L2. Cer : ligamentum nuchae & spinous process C7. Cap : indistinct from semispinalis capitis (transverse processes C7-T6). T : spinous processes T1-T4. Cer : spinous process of C2. Cap : between superior and inferior nuchal line. Dorsal rami of spinal nerves. Segmentally : deep cervical, posterior intercostals, subcostal and lumbar arteries. Bilateral : extension of head and vertebral column. Unilaterally : lateral flexion of neck and vertebral column. 4) Semispinalis Thoracis Cervicis Capitis T : TP of T6-T10. Cer : TP of T1-T5. Cap : TP of C7-T6. T
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/22/2011 for the course PTA 1001 taught by Professor Rice during the Spring '11 term at South University Online.

Page1 / 35

Musculoskeletal Anatomy table - 1 Musculoskeletal Anatomy...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online