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Detailed Overview of Back Topography and Nervous System Division

Explore the topography of the back along with the excitability and conductibility of spinal and cranial nerves. Learn about the division of the peripheral nerve system and the pathways of the spinal nerves as they pass through specific foramina. Discover the intricate network of dorsal and ventral nerve branches, plexuses, and regions of the back, as well as the innervation of intrinsic back muscles.

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Detailed Overview of Back Topography and Nervous System Division

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  1. Topography of the back

  2. Excitability Conductibility

  3. Division of the periphery nerve system Cranial nerves (I.- XII. pairs) • pass through the skull base Spinal nerves – 31 pairs • pass through foramina intervertebralia

  4. SPINAL NERVES

  5. Spinal nerve 1) dorsal branch 2) ventral branch

  6. Nervi spinales – 31 pairs (spinal nerves) • 1)Rami dorsales (dorsal branches) • N. suboccipitalis • N. occipitalis major • N. occipitalis tertius • Medial + lateral branches • 4. Nn. clunium superiores (lumbar) • 5.Nn. clunium medii (sacral) Subcutaneous layer – rr. dorsales 2) Rami ventrales(ventral branches) except of nn. intercostales form plexuses – plexus cervicalis, brachialis, lumbalis, sacralis

  7. Regiones dorsi (back regions) Nuchal region scapular subcostal lumbar Vertebral sacral

  8. Nerves of the back • N. accessorius XI. cranial nerve • N. occipitalis minor (plexus cervicalis) • N. thoracodorsalis (plexus brachialis) • N. dorsalis scapulae (plexus brachialis) • Nn. intercostales • +rami dorsales nervorum • spinalium (dorsal branches • of spinal nerves)

  9. Arteries of the back a. occipitalis a. cervicalis profunda a. vertebralis a. transversa colli • thoracodorsalis aa. intercostales

  10. Intrinsic muscles of the back mainly extensors of the back and the head, innervation rami dorsales of spinal nerves 1)Spinotransversal system (m. splenius capitis and cervicis) 2) Sacrospinal system (m. erector spinae, longissimus and iliocostalis) 3) Spinospinal system 4) Transversospinal system (m. semispinalis capitis and cervicis)

  11. Short back muscles m. rectus capitis post. min.+maj. m. obliquus capitis inf. and sup. spec.

  12. Trigonumsuboccipitale - content: n. suboocipitalis – C1 a. cervicalisprofunda a. vertebralis arcusposteriorof atlas NERVES: C1 C2 C3 Trigonum and mm. nuchaeprofundi

  13. Trigonum Grynfelti: m. serratus post. inf. m. obliquus internus abdominis m. erector spinae Tetragon Krausei: + costa XII hernias access to the kidney perirenal abscesses Trigonum lumbale Petiti: m. latissimus dorsi, crista iliaca, m. obliquus externus abdominis, m. obliquus internus abdominis - bottom

  14. Used pictures come from: Moore, K. L. (1992): Clinical oriented anatomy. Third edition. Williams&Wilkins, A Waverly Company. Gilroy, A. M. et all. (2009): Atlas of Anatomy. Thieme New York, Stuttgart. Putz, R. (2008): Atlas of Human Anatomy Sobotta. Elsevier Books. Platzer, W., Kahle, W., Leonhardt H. (1992): Locomotor system. Georg Thieme Verlag, Stuttgart, New York, 4th edition. Čihák, R. (1987): Anatomie 1. Avicenum, Zdravotnické nakladatelství.

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