Uberon definition : The intercostal nerves are the anterior divisions (rami anteriores; ventral divisions)
of the thoracic spinal nerves from T1 to T11. Each nerve is connected with the adjoining
ganglion of the sympathetic trunk by a gray and a white ramus communicans. The intercostal
nerves are distributed chiefly to the thoracic pleura and abdominal peritoneum and
differ from the anterior divisions of the other spinal nerves in that each pursues
an independent course without plexus formation. The first two nerves supply fibers
to the upper limb in addition to their thoracic branches; the next four are limited
in their distribution to the parietes of the thorax; the lower five supply the parietes
of the thorax and abdomen. The 7th intercostal nerve terminates at the xyphoid process,
at the lower end of the sternum. The 10th intercostal nerve terminates at the umbilicus.
The twelfth thoracic is distributed to the abdominal wall and groin. [WP,unvetted].;
Uberon synonym : ramus anterior, nervus thoracicus; thoracic anterior ramus; anterior ramus of thoracic nerve; anterior ramus of thoracic spinal nerve; ventral ramus of thoracic spinal nerve;
The intercostal nerves are the anterior divisions (rami anteriores; ventral divisions)
of the thoracic spinal nerves from T1 to T11. Each nerve is connected with the adjoining
ganglion of the sympathetic trunk by a gray and a white ramus communicans. The intercostal
nerves are distributed chiefly to the thoracic pleura and abdominal peritoneum and
differ from the anterior divisions of the other spinal nerves in that each pursues
an independent course without plexus formation. The first two nerves supply fibers
to the upper limb in addition to their thoracic branches; the next four are limited
in their distribution to the parietes of the thorax; the lower five supply the parietes
of the thorax and abdomen. The 7th intercostal nerve terminates at the xyphoid process,
at the lower end of the sternum. The 10th intercostal nerve terminates at the umbilicus.
The twelfth thoracic is distributed to the abdominal wall and groin. [WP,unvetted].