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The intercostobrachial nerve is the name applied to the lateral cutaneous branch of the second intercostal nerve. It arises anterior to the long thoracic nerve . It provides sensory innervation to the skin of the axilla, and a variable region of the medial side of the upper arm.
The first intercostal nerve rarely gives off a lateral cutaneous branch; but sometimes sends a small branch to communicate with the intercostobrachial. From the second thoracic nerve it frequently receives a connecting twig, which ascends over the neck of the second rib. This nerve was first described by Kuntz in 1927.
1 Location. 2 Alphabetical list. 3 Related topic. ... Infratrochlear nerve; Intercostal nerves; Intercostobrachial nerve; Intermediate cutaneous nerve; Internal ...
It passes through the axilla, at first lying behind, and then medial to the axillary vein, and communicates with the intercostobrachial nerve.. It descends along the medial side of the brachial artery to the middle of the arm, where it pierces the deep fascia, and is distributed to the skin of the back of the lower third of the arm, extending as far as the elbow, where some filaments are lost ...
Inferior lateral cutaneous nerve of arm - Near blue "axillary" area, but actually branches from radial nerve. Most modern sources distinguish the superior and inferior, but some still include a single "lateral brachial cutaneous nerve". ) Intercostobrachial nerve (brown) Medial cutaneous nerve of arm (yellow) - labeled as "medial brachial ...
The anterior rami will follow the course of the rib - T1 will contribute to the brachial plexus & a smaller branch will form the first intercostal nerve - T2 and sometimes T1 contributes to the intercostobrachial nerve
This can be accomplished by using a peripheral nerve stimulator to identify the location of the nerve as it passes through the coracobrachialis muscle. The intercostobrachial nerves (which are branches of the second and third intercostal nerves) are also frequently missed with the axillary block.
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