The descending aorta is the longest part, further subdivided into thoracic and abdominal aorta, with the diaphragm being the anatomical division between the two.
What are the parts of aorta?
Considering the significant portion of the body that the aorta spans, it is helpful to break it down into the following four sections:
- Aortic Root. The aortic root is the portion of the aorta that is attached to the heart. …
- Ascending Aorta. …
- Aortic Arch. …
- Descending Thoracic Aorta. …
- Abdominal Aorta.
What is the length of the aorta?
The thoracic aorta ranged in length from 21 to 48 cm. with a mean length of 33.2 cm.
What is the largest branch of the abdominal aorta?
The first and often largest visceral branch of the abdominal aorta is the celiac trunk. The celiac trunk quickly bifurcates or trifurcates into branches. The main branches are the common hepatic and splenic arteries, and, in the case of a trifurcation, the left gastric artery (see Figure 19).
What is the largest artery found in the body?
The aorta is the large artery that carries oxygen-rich blood from the left ventricle of the heart to other parts of the body.
What is the longest vein in the body?
Great Saphenous Vein (GSV) – The GSV is the large superficial vein of the leg and the longest vein in the entire body. It can be found along the length of the lower limb, returning blood from the thigh, calf, and foot to the deep femoral vein at the femoral triangle. The femoral triangle is located in the upper thigh.
Why is the aorta the largest artery?
The aorta is the largest artery because it connects directly to the heart and is the starting point for blood transport to the entire body.
What are the 3 branches of the aorta?
The convexity of the aortic arch gives off three branches; the brachiocephalic trunk, the left common carotid artery and the left subclavian artery.
What are the first branches of the aorta?
The first branch of the aorta is normally the innominate artery, which is also referred to as the brachiocephalic trunk. Shortly after its origin, the innominate artery divides into the right subclavian and right common carotid arteries.
Is the abdominal aorta intraperitoneal or retroperitoneal?
The retroperitoneal space is bounded by the posterior parietal peritoneum anteriorly and the lumbar spine posteriorly. The retroperitoneal space contains the kidneys, adrenal glands, pancreas, nerve roots, lymph nodes, abdominal aorta, and inferior vena cava.
How many parts of the aorta are there?
It receives the cardiac output from the left ventricle and supplies the body with oxygenated blood via the systemic circulation. The aorta can be divided into four sections: the ascending aorta, the aortic arch, the thoracic (descending) aorta and the abdominal aorta.
Where is the thoracic aorta?
The thoracic aorta begins at the heart, at the level of the aortic valves. The thoracic aorta becomes the abdominal aorta at the diaphragm, just proximal to the celiac artery origin, usually at the T12 vertebral body. The thor-acic aorta is divided into ascending, transverse, and descending portions (Fig. 9-1).
Is the femoral artery the largest artery?
The common femoral artery is the largest artery found in the femoral region of the body. It begins as a continuation of the external iliac artery at the inguinal ligament that serves as the dividing line between the pelvis and the leg.
What is the smallest artery?
The smallest artery in the human body is an arteriole. Arterioles branch off from the end of arteries and take blood to the capillaries, which are the…