What does the intercostobrachial nerve represent?
The intercostobrachial nerve is a lateral cutaneous branch of the second intercostal nerve that supplies sensation to the skin of the axilla. It leaves the second intercostal space at the midaxillary line and subsequently pierces the serratus anterior muscle to enter the subcutaneous tissues of the axilla.
What are the Intercostobrachial nerves?
The intercostobrachial nerve (ICBN) is a nerve classically originating from the lateral cutaneous branch of the second intercostal nerve . The ICBN functions to innervate portions of the axilla, tail of the breast, lateral chest wall and medial side of the arm [2-3].
Which nerve can carry referred pain from the heart to the arm due to the contribution from the intercostobrachial nerve?
Second intercostal nerve It then pierces the fascia, and supplies the skin of the upper half of the medial and posterior part of the arm, communicating with the posterior brachial cutaneous branch of the radial nerve. It is often the source of referred cardiac pain.
Is a Subcostal nerve?
The subcostal nerve (anterior division of the twelfth thoracic nerve) is larger than the others. It runs along the lower border of the twelfth rib, often gives a communicating branch to the first lumbar nerve, and passes under the lateral lumbocostal arch….
|Anatomical terms of neuroanatomy|
What happens if the thoracodorsal nerve is damaged?
An intact thoracodorsal nerve may also cause atrophy of the muscle, which can lead to shoulder and arm weakness that hampers numerous common movements, including standing up from a chair.
What nerve pierces the pectoralis minor?
The medial pectoral nerve enters the pectoralis minor muscle in which it gives off several branches that supply the muscle. The nerve then perforates the pectoralis minor muscle to reach the pectoralis major muscle. The pectoralis major muscle consists of a clavicular part and a sternal part.
Which nerve passes through the middle of the arm?
The median nerve travels along the inside of the arm near the brachial artery. The median nerve does not provide any function until after it crosses the elbow. In the forearm, the median nerve supplies almost all the flexor muscles and all the pronator muscles of the forearm with nerves.
What causes subcostal nerve pain?
Intercostal neuralgia is caused by irritation, inflammation, or compression of your intercostal nerves, which are just below your ribs. A number of things can cause this, including: trauma to your chest. viral infections, such as shingles.
Why is the subcostal nerve important?
The subcostal nerve provides sensory innervation to the region under the umbilicus and also provides motor innervation to the pyramidalis and quadratus lumborum muscles.
Which cord does the thoracodorsal nerve come off of?
The thoracodorsal nerve arises from the C6, C7, and C8 roots but its predominant root is C7.  It appears as a branch of the posterior cord of the brachial plexus. The thoracodorsal nerve courses inferiorly and laterally to form the latissimus dorsi pedicle.
What is pectoralis minor syndrome?
Pectoralis minor syndrome (PMS) is a condition causing pain, numbness and tingling in the hand and arm. It often coexists with thoracic outlet syndrome (TOS) but can also occur alone. The symptoms are similar to those of TOS: Pain, weakness, numbness and tingling in the hand and arm.
What activity uses the pectoralis minor?
Function. The primary actions of this muscle include the stabilization, depression, abduction or protraction, internal rotation and downward rotation of the scapula. It elevates the ribs for deep inspiration when the pectoral girdle is fixed or elevated.
How is the size of the intercostobrachial nerve related to its size?
The size of the intercostobrachial nerve is in inverse proportion to that of the medial brachial cutaneous nerve. A second intercostobrachial nerve is frequently given off from the lateral cutaneous branch of the third intercostal; it supplies filaments to the axilla and medial side of the arm.
Where are intercostobrachial blocks done in the body?
I’ve seen 64420 which is for “intercostal,” and 64450 (other peripheral nerve or branch). Descriptions of intercostal blocks say they are for surgery around the chest and abdominal wall, and the injection is done in the area of the ribs. Intercostobrachial blocks are done on the inner arm near the armpit and are used for upper arm surgery.
What kind of surgery can damage the intercostobrachial nerve?
In practice, axillary surgery in breast tumors can damage or lacerate the intercostobrachial nerve resulting in a painful neuropathic syndrome. Neck surgery in ENT tumors can injure the cervical nerves and the spinal accessory nerve. Thoracotomy can cause damage of the long thoracic nerves, intercostal nerves, and phrenic and recurrent nerves.
How to get an appointment for intercostobrachial neuralgia?
Intercostobrachial neuralgia (armpit nerve pain) can cause pain after mastectomy, thoracotomy, trauma, or radiation to the chest. Call (425) 247-3359 or (206) 395-4422 Phone| (888) 688-4167 Fax| REQUEST CLINIC APPOINTMENT| BOOK A TELEMEDICINE APPOINTMENT| OPEN During COVID-19