Lung hilum
Updates to Article Attributes
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
In theThe left hilum the left pulmonary artery occupies the upper part. Below this is the left main bronchus. There are two pulmonary veins, one lies in front, and the other
Right hilum
In theThe right hilum lies below the bronchusarch of the upper lobe and the branch of the right pulmonary arteryazygous vein, posterior to the upper lobe originate prior to entering the hilum. Thus, the upper lobe bronchussuperior vena cava and artery are found above the level of the right main bronchus and right pulmonary arteryThe arteries lie in front of their respective bronchi. The twoRight pulmonary veins are similar to thatlocated at the anterior part of the left sidehilum, one in frontfollowed by right pulmonary arteries, and one below the right main bronchuslobar bronchi 5.
The structures of the lung hilum are enclosed in a sleeve of pleura continuous below with the pulmonary ligament5.
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.</p><h4>Gross anatomy</h4><h5>Left hilum</h5><p>In the left hilum the <a href="/articles/left-pulmonary-artery">left pulmonary artery</a> occupies the upper part. Below this is the <a href="/articles/left-main-bronchus">left main bronchus</a>. There are two <a href="/articles/pulmonary-veins">pulmonary veins</a>, one lies in front, and the other lies below the left main bronchus.</p><h5>Right hilum</h5><p>In the right hilum the bronchus of the upper lobe and the branch of the right pulmonary artery to the upper lobe originate prior to entering the hilum. Thus, the upper lobe bronchus and artery are found above the level of the <a href="/articles/right-main-bronchus-1">right main bronchus </a>and <a href="/articles/right-pulmonary-artery">right pulmonary artery</a>. The arteries lie in front of their respective bronchi. The two pulmonary veins are similar to that of the left side, one in front and one below the right main bronchus.</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>.</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>.</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>
References changed:
- 5. Stephanie Ryan, Michelle McNicholas, Stephen J. Eustace. Anatomy for Diagnostic Imaging. (2011) ISBN: 9780702029714 - <a href="http://books.google.com/books?vid=ISBN9780702029714">Google Books</a>
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