the nerves that emerge from the thoracic region of the spinal cord are called internal arcuate fibers.
the nerves that emerge from the thoracic region of the spinal cord are called internal arcuate fibers.
what are the nerves called that emerge from the thoracic region of the spinal cord?
internal arcuate fibers
the cervical nerves innervate the sternohyoid, sternothyroid and omohyoid muscles.









































a loop of nerves called ansa cervicalis is part of the cervical plexus.









































section::::regional nerves.:thoracic nerves.









































the thoracic nerves are the twelve spinal nerves emerging from the thoracic vertebrae. each thoracic nerve t1 -t12 originates from below each corresponding thoracic vertebra. branches also exit the spine and go directly to the paravertebral ganglia of the autonomic nervous system where they are involved in the functions of organs and glands in the head, neck, thorax and abdomen.
spinal nerve
for the rest of the body, spinal nerves are responsible for somatosensory information. these arise from the spinal cord. usually these arise as a web ("plexus") of interconnected nerves roots that arrange to form single nerves. these nerves control the functions of the rest of the body. in humans, there are 31 pairs of spinal nerves: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. these nerve roots are named according to the spinal vertebrata which they are adjacent to. in the cervical region, the spinal nerve roots come out "above" the corresponding vertebrae (i.e., nerve root between the skull and 1st cervical vertebrae is called spinal nerve c1). from the thoracic region to the coccygeal region, the spinal nerve roots come out "below" the corresponding vertebrae. it is important to note that this method creates a problem when naming the spinal nerve root between c7 and t1 (so it is called spinal nerve root c8). in the lumbar and sacral region, the spinal nerve roots travel within the dural sac and they travel below the level of l2 as the cauda equina.
peripheral nervous system