What are the names of the four branches of the aorta?
The aorta can be divided into four sections: the ascending aorta, the aortic arch, the thoracic (descending) aorta and the abdominal aorta. It terminates at the level of L4 by bifurcating into the left and right common iliac arteries.
How is the aorta related to the brachiocephalic trunk?
Superiorly, the aortic arch is related to the branches of the brachiocephalic trunk, as well as the left common carotid artery, left subclavian artery, left brachiocephalic vein and the thymus. Inferiorly]
Where are the left and right aortic sinuses located?
It is 2 inches long in length and travels with the pulmonary trunk in the pericardial sheath. The left and right aortic sinuses are dilations in the ascending aorta, located at the level of the aortic valve. They give rise to the left and right coronary arteries that supply the myocardium.
Where is the ascending aorta located in the heart?
Along with the heart, the ascending aorta is situated in the inferior mediastinum. The ascending aorta is completely enclosed by pericardium together with the pulmonary trunk. These two vessels initially run in parallel, with the infundibulum of the pulmonary trunk lying anterior to the ascending aorta.
Which is the last artery given off by the aortic arch?
Arising at the level of the sternal angle, the left subclavian artery is the last artery to be given off by the aortic arch, marking the termination of the aortic arch and the beginning of the descending aorta.
Where does the ascending part of the aorta begin?
The ascending aorta is the first part of the aorta that begins at the aortic orifice on the base of the left ventricle, roughly at the level of the lower border of the third left costal cartilage.
Where does the ascending aorta supply the heart?
Function. Broadly speaking, branches from the ascending aorta supply the heart; branches from the aortic arch supply the head, neck and arms; branches from the thoracic descending aorta supply the chest (excluding the heart and the respiratory zone of the lung); and branches from the abdominal aorta supply the abdomen.
Where does the abdominal aorta supply the pelvis?
The abdominal aorta in a nutshell. The abdominal aorta is a continuation of the descending thoracic aorta. It supplies all of the abdominal organs, and its terminal branches go on to supply the pelvis and lower limbs. It also supplies the undersurface of the diaphragm and parts of the abdominal wall.
What is the size of the abdominal aorta?
It measures between 2 and 2.5 cms, with little difference between the proximal and distal measurement, since the branches it gives off are relatively small. The abdominal aorta has a suprprenal component and an infrarenal component.