Intercostobrachial nerve
Updates to Article Attributes
Body
was changed:
The intercostobrachial nerve is a lateral cutaneous branch of the 2ndsecond intercostal nerve that supplies sensation to the skin of the axilla, hence. Therefore it is sometimes referred to as the 'tickle2ndsecond intercostal space at the midaxillary line, pierces and subsequently pierces the serratus anterior muscle to enter the subcutaneous tissues of the axilla.
The nerve may be injured during axillary surgery such as nodal clearance for breast cancer 1.
Variant anatomy
- the lateral cutaneous branch of the
3rdthird intercostal nerve may give rise to a second intercostobrachial nerve - the intercostobrachial nerve may join the medial cutaneous nerve of the arm to supply the skin of the medial arm
.
-<p>The <strong>intercostobrachial nerve</strong> is a lateral cutaneous branch of the 2nd intercostal nerve that supplies sensation to the skin of the <a href="/articles/axilla">axilla</a>, hence is sometimes referred to the '<em>tickle</em>' nerve. It leaves the 2nd intercostal space at the <a href="/articles/midaxillary-line">midaxillary line</a>, pierces the <a href="/articles/serratus-anterior">serratus anterior muscle</a> to enter the subcutaneous tissues of the axilla.</p><p>The nerve may be injured during axillary surgery such as nodal clearance for breast cancer <sup>1</sup>.</p><h4>Variant anatomy</h4><ul>-<li>the lateral cutaneous branch of the 3rd intercostal nerve may give rise to a second intercostobrachial nerve</li>-<li>the intercostobrachial nerve may join the <a href="/articles/medial-cutaneous-nerve-of-the-arm">medial cutaneous nerve of the arm</a> to supply the skin of the medial arm.</li>-</ul><p> </p>- +<p>The <strong>intercostobrachial nerve</strong> is a lateral cutaneous branch of the second intercostal nerve that supplies sensation to the skin of the <a href="/articles/axilla">axilla</a>. Therefore it is sometimes referred to as the 'tickle' nerve. It leaves the second intercostal space at the <a href="/articles/midaxillary-line">midaxillary line</a> and subsequently pierces the <a href="/articles/serratus-anterior">serratus anterior muscle</a> to enter the subcutaneous tissues of the axilla.</p><p>The nerve may be injured during axillary surgery such as nodal clearance for breast cancer <sup>1</sup>.</p><h4>Variant anatomy</h4><ul>
- +<li>the lateral cutaneous branch of the third intercostal nerve may give rise to a second intercostobrachial nerve</li>
- +<li>the intercostobrachial nerve may join the <a href="/articles/medial-cutaneous-nerve-of-the-arm">medial cutaneous nerve of the arm</a> to supply the skin of the medial arm</li>
- +</ul>
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