Lateral thoracic artery
Updates to Article Attributes
Body
was changed:
The lateral thoracic artery is a branch of the thirdsecond-part of the axillary artery.
Gross anatomy
Origin and course
The lateral thoracic artery originates from the medial surface of the axillary artery, posterior to the distal part of pectoralis minor. It courses inferomedially along the inferior border of pectoralis minor to the anterior surface of serratus anterior.
Branches
- anatomoses with the internal thoracic and intercostal arteries 2 as well as with the superior thoracic artery 1
Supplies
- breast
- pectoralis major and minor muscles
- subscapularis muscle
- serratus anterior muscle
Variant anatomy
- may arise from the subscapular artery 4
Etymology
Previously known as external mammary artery 3.
-<p>The <strong>lateral thoracic artery</strong> is a branch of the third-part of the <a href="/articles/axillary-artery">axillary artery</a>. </p><h4>Gross anatomy</h4><h5>Origin and course</h5><p>The lateral thoracic artery originates from the medial surface of the axillary artery, posterior to the distal part of <a href="/articles/pectoralis-minor">pectoralis minor</a>. It courses inferomedially along the inferior border of <a href="/articles/pectoralis-minor">pectoralis minor</a> to the anterior surface of <a href="/articles/serratus-anterior">serratus anterior</a>.</p><h5>Branches</h5><ul><li>anatomoses with the <a href="/articles/internal-thoracic-artery">internal thoracic</a> and <a href="/articles/intercostal-arteries">intercostal arteries</a> <sup>2</sup> as well as with the <a href="/articles/superior-thoracic-artery">superior thoracic artery</a> <sup>1</sup>- +<p>The <strong>lateral thoracic artery</strong> is a branch of the second-part of the <a href="/articles/axillary-artery">axillary artery</a>. </p><h4>Gross anatomy</h4><h5>Origin and course</h5><p>The lateral thoracic artery originates from the medial surface of the axillary artery, posterior to the distal part of <a href="/articles/pectoralis-minor">pectoralis minor</a>. It courses inferomedially along the inferior border of <a href="/articles/pectoralis-minor">pectoralis minor</a> to the anterior surface of <a href="/articles/serratus-anterior">serratus anterior</a>.</p><h5>Branches</h5><ul><li>anatomoses with the <a href="/articles/internal-thoracic-artery">internal thoracic</a> and <a href="/articles/intercostal-arteries">intercostal arteries</a> <sup>2</sup> as well as with the <a href="/articles/superior-thoracic-artery">superior thoracic artery</a> <sup>1</sup>
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