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  2. Thoracic vertebrae - Wikipedia

    en.wikipedia.org/wiki/Thoracic_vertebrae

    Thoracic vertebrae. In vertebrates, thoracic vertebrae compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae. [ 1 ] In humans, there are twelve thoracic vertebrae of intermediate size between the cervical and lumbar vertebrae; they increase in size going towards the lumbar vertebrae ...

  3. Spinal cord - Wikipedia

    en.wikipedia.org/wiki/Spinal_cord

    Anatomical terminology. [edit on Wikidata] The spinal cord is a long, thin, tubular structure made up of nervous tissue that extends from the medulla oblongata in the lower brainstem to the lumbar region of the vertebral column (backbone) of vertebrate animals. The center of the spinal cord is hollow and contains a structure called the central ...

  4. Thoracic spinal nerve 11 - Wikipedia

    en.wikipedia.org/wiki/Thoracic_spinal_nerve_11

    Latin. nervi spinalis. FMA. 6312. Anatomical terminology. [edit on Wikidata] The thoracic spinal nerve 11 (T11) is a spinal nerve of the thoracic segment. [1] It originates from the spinal column from below the thoracic vertebra 11 (T11).

  5. Spinal nerve - Wikipedia

    en.wikipedia.org/wiki/Spinal_nerve

    Spinal nerve. A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column. [1][2] These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the ...

  6. Thoracolumbar fascia - Wikipedia

    en.wikipedia.org/wiki/Thoracolumbar_fascia

    The thoracolumbar fascia is the gray area at bottom center. The thoracolumbar fascia (lumbodorsal fascia or thoracodorsal fascia) is a complex, [1]: 1137 multilayer arrangement of fascial and aponeurotic layers forming a separation between the paraspinal muscles on one side, and the muscles of the posterior abdominal wall (quadratus lumborum ...

  7. Iliocostalis - Wikipedia

    en.wikipedia.org/wiki/Iliocostalis

    Iliocostalis muscle has a common origin from the iliac crest, the sacrum, the thoracolumbar fascia, and the spinous processes of the vertebrae from T11 to L5. [1]Iliocostalis cervicis (cervicalis ascendens) arises from the angles of the third, fourth, fifth, and sixth ribs, and is inserted into the posterior tubercles of the transverse processes of the fourth, fifth, and sixth cervical vertebrae.

  8. Intercostal nerves - Wikipedia

    en.wikipedia.org/wiki/Intercostal_nerves

    The intercostal nerves are part of the somatic nervous system, and arise from the anterior rami of the thoracic spinal nerves from T1 to T11. [1] [2] The intercostal nerves are distributed chiefly to the thoracic pleura and abdominal peritoneum, and differ from the anterior rami of the other spinal nerves in that each pursues an independent course without plexus formation.

  9. Accessory nerve - Wikipedia

    en.wikipedia.org/wiki/Accessory_nerve

    The fibres that form the spinal accessory nerve are formed by lower motor neurons located in the upper segments of the spinal cord. This cluster of neurons , called the spinal accessory nucleus , is located in the lateral aspect of the anterior horn of the spinal cord, and stretches from where the spinal cord begins (at the junction with the ...