What is the descending thoracic aorta?

What is the descending thoracic aorta?

What is the descending thoracic aorta?

The descending aorta begins after the origin of the left subclavian artery from the aortic arch and continues down through the chest to the diaphragm. The segment of the aorta below the diaphragm is referred to as the abdominal aorta. The descending aorta provides important blood flow to the spinal cord.

What is the function of the descending thoracic 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 are the two classifications of arterial branches from the descending thoracic aorta?

The major noncoronary branches of the thoracic aorta are (in order) the innominate (also known as the brachiocephalic) artery, the left common carotid artery, and the left subclavian artery. The innominate artery bifurcates into the right common carotid and right subclavian arteries.

Where does the descending thoracic aorta begin?

aortic arch
The descending aorta begins at the end of the aortic arch and continues down into the abdomen. There are two parts to the descending aorta. The thoracic aorta runs from the aortic arch to the diaphragm, which is the point of separation between the chest cavity and the abdominal cavity.

What is calcification of the thoracic aorta?

Aortic valve calcification is a condition in which calcium deposits form on the aortic valve in the heart. These deposits can cause narrowing at the opening of the aortic valve. This narrowing can become severe enough to reduce blood flow through the aortic valve — a condition called aortic valve stenosis.

What are the branches of the descending thoracic aorta?

The descending thoracic aorta is a part of the aorta located in the thorax….Descending thoracic aorta.

Thoracic aorta
Branches bronchial arteries, esophageal arteries, posterior intercostal arteries, abdominal aorta, superior phrenic artery, pericardial arteries
Latin pars thoracica aortae, aorta thoracalis
MeSH D001013

Is descending aorta same as abdominal?

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.

Do all thoracic aneurysms grow?

Thoracic aortic aneurysms often grow slowly and usually without symptoms, making them difficult to detect. Some aneurysms will never rupture. Many start small and stay small, although some expand over time. How quickly an aortic aneurysm may grow is difficult to predict.

How fast does a thoracic aneurysm grow?

We began with the fundamental question of how fast the aneurysmal thoracic aorta grows. We found that, although a virulent disease, thoracic aortic aneurysm is an indolent process. The thoracic aorta grows very slowly — at about 0.1 cm per year.