Lung hilum

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The lung hila or roots are found on the medial aspect of each lung. The left and right lung roots are similar but not identical. The roots of the lung lie between T5 to T7 vertebrae ⁵.

Gross anatomy

Left hilum

The left hilum lies below the arch of the aorta and anterior to the descending aorta. The left main bronchus lies in the front part of the hilum, followed by left pulmonary veins and left pulmonary artery ⁵. Pulmonary veins always lie anteroinferiorly to the pulmonary artery ⁵.

Right hilum

The right hilum lies below the arch of the azygous vein, posterior to the superior vena cava and right atrium. Right pulmonary veins are located at the anterior part of the hilum, followed by right pulmonary arteries, and lobar bronchi ⁵.

The structures of the lung hilum are enclosed in a sleeve of pleura continuous below with the pulmonary ligament ⁵.

In addition to the structures described above, each root contains bronchial vessels, autonomic nerves, lymph nodes, and lymphatic channels.

-<p>The <strong>lung</strong> <strong>hila </strong>or <strong>roots</strong> are found on the medial aspect of each <a href="/articles/lung">lung</a>. The left and right lung roots are similar but not identical. The roots of the lung lie between T5 to T7 vertebrae <sup>5</sup>.</p><h4>Gross anatomy</h4><h5>Left hilum</h5><p>The left hilum lies below the arch of the aorta and anterior to the descending aorta. The left main bronchus lies in the front part of the hilum, followed by left pulmonary veins and left pulmonary artery <sup>5</sup>.</p><h5>Right hilum</h5><p>The right hilum lies below the arch of the azygous vein, posterior to the superior vena cava and right atrium. Right pulmonary veins are located at the anterior part of the hilum, followed by right pulmonary arteries, and lobar bronchi <sup>5</sup>.</p><p>The structures of the lung hilum are enclosed in a sleeve of pleura continuous below with the <a href="/articles/inferior-pulmonary-ligament">pulmonary ligament</a> <sup>5</sup>.</p><p>In addition to the structures described above, each root contains bronchial vessels, autonomic nerves, lymph nodes, and lymphatic channels.</p>
+<p>The <strong>lung</strong> <strong>hila </strong>or <strong>roots</strong> are found on the medial aspect of each <a href="/articles/lung">lung</a>. The left and right lung roots are similar but not identical. The roots of the lung lie between T5 to T7 vertebrae <sup>5</sup>.</p><h4>Gross anatomy</h4><h5>Left hilum</h5><p>The left hilum lies below the arch of the aorta and anterior to the descending aorta. The left main bronchus lies in the front part of the hilum, followed by left pulmonary veins and left pulmonary artery <sup>5</sup>. Pulmonary veins always lie anteroinferiorly to the pulmonary artery <sup>5</sup>.</p><h5>Right hilum</h5><p>The right hilum lies below the arch of the azygous vein, posterior to the superior vena cava and right atrium. Right pulmonary veins are located at the anterior part of the hilum, followed by right pulmonary arteries, and lobar bronchi <sup>5</sup>.</p><p>The structures of the lung hilum are enclosed in a sleeve of pleura continuous below with the <a href="/articles/inferior-pulmonary-ligament">pulmonary ligament</a> <sup>5</sup>.</p><p>In addition to the structures described above, each root contains bronchial vessels, autonomic nerves, lymph nodes, and lymphatic channels.</p>

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Lung hilum

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Gross anatomy

Left hilum

Right hilum

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