What are the branches of the descending aorta?

What are the branches of the descending aorta?

As it descends in the thorax, the aorta gives off several paired branches. In descending order these are the bronchial arteries, the mediastinal arteries, the esophageal arteries, the pericardial arteries, and the superior phrenic artery.

Is the thoracic aorta the descending aorta?

Thoracic Aorta The thoracic (descending) aorta spans from the level of T4 to T12. Continuing from the aortic arch, it initially begins to the left of the vertebral column but approaches the midline as it descends. It leaves the thorax via the aortic hiatus in the diaphragm, and becomes the abdominal aorta.

What does the descending thoracic aorta supply?

The descending thoracic aorta travels down through the chest. Its small branches supply blood to the ribs and some chest structures. The abdominal aorta begins at the diaphragm, splitting to become the paired iliac arteries in the lower abdomen.

What is the first branch of the descending aorta?

As the descending thoracic aorta crosses through the crus of the diaphragm it becomes the most proximal segment of the abdominal aorta (see Figure 18). The first and often largest visceral branch of the abdominal aorta is the celiac trunk.

What is the visceral branches of the thoracic aorta?

The visceral branches are the pericardial, bronchial, esophageal and mediastinal branches, while the parietal branches are intercostal, subcostal and superior phrenic arteries. Synonyms: Oesophageal branches of aorta, Arteriae oesphageae , show more…

What are 3 branches of the thoracic aorta?

Typically, there are three branches arising from the aortic arch: the brachiocephalic trunk or artery (also referred to as the innominate artery), the left common carotid artery, and the left subclavian artery.

What is the role of descending aorta?

The large descending aorta (Fig. 4.30) carries blood to the thorax and abdomen, letting off several intercostal and posterior branches. From the aorta, arteries reach the viscera of the thorax and abdomen as in other mammals.

What is ascending and descending aorta?

The key difference between ascending and descending aorta is that ascending aorta is the upward part of the arch and the aortic section closest to the heart while descending aorta is the downward portion of the arch that is connected to a network of arteries and supplies most of the body with oxygen-rich blood.

What is descending aorta?

Which branch of the aorta supplies the descending colon?

inferior mesenteric artery
Colon: Structure and Function The inferior mesenteric artery, also a branch of the abdominal aorta, supplies the distal third of the transverse colon, the descending colon and sigmoid colon, and the superior portion of the rectum as the superior hemorrhoidal artery.