Sample Sentences & Example Usage. 1  Sylvia Loehrmann: It's so tragic, so sad, so unfathomable. 2  Todd Spitzer: We don't want a judge that legislates from the bench, it's just unfathomable that the judge would try to describe what is a brutal sodomy.
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 walls of the thorax; the lower five supply the walls 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 navel. The twelfth (subcostal) thoracic is distributed to the abdominal wall and groin.Unlike the nerves from the autonomic nervous system that innervate the visceral pleura of the thoracic cavity, the intercostal nerves arise from the somatic nervous system.he 7th intercostal nerve terminates at the xyphoid process, at the lower end of the sternum. The 10th intercostal nerve terminates at the navel. The twelfth (subcostal) thoracic is distributed to the abdominal wall and groin.
The Intercostal Muscles. These muscles are found between the ribs, and there are two kinds: the internal and external intercostals. The internal intercostal muscles (in the inside of the ribcase) extend from the front of the ribs, and go around back, past the bend in the ribs.he external intercostal muscles (on the outside of the ribcase) wrap around from the back of the rib almost to the end of the bony part of the rib in front. The image above is seen from the inside. The yellowish bones are the sternum in the centre and the ribs and clavicle (at the very top).