Where does the aorta end?

Where does the aorta end?

Abdominal Aorta. The abdominal aorta is a continuation of the thoracic aorta beginning at the level of the T12 vertebrae. It is approximately 13cm long and ends at the level of the L4 vertebra. At this level, the aorta terminates by bifurcating into the right and left common iliac arteries that supply the lower body.

What is the end of the aorta called?

After the aorta passes through the diaphragm, it is known as the abdominal aorta. The aorta ends by dividing into two major blood vessels, the common iliac arteries and a smaller midline vessel, the median sacral artery.

What is the first artery to branch off the aorta?

innominate artery
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.

What does the descending aorta branch into?

Descending aorta: The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the common iliac arteries) that go to the legs.

What cavity is the stomach in?

The abdominal cavity contains the greater part of the digestive tract, the liver and pancreas, the spleen, the kidneys, and the adrenal glands located above the kidneys.

L4 vertebra
It is approximately 13cm long and ends at the level of the L4 vertebra. At this level, the aorta terminates by bifurcating into the right and left common iliac arteries that supply the lower body.

What are the terminal branches of aorta?

The terminal branches of the abdominal aorta, the left and right common iliac arteries, arise from the bifurcation in front of the body of L4 vertebra about 1.25 cm to the left of the median plane. The common iliac arteries supply the lower limb, the gluteal region, and the pelvic viscera.

What are the first vessels to branch off the aorta called?

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.

Where does the aorta start and end in the body?

The abdominal aorta, which lies slightly left of the midline of the body, starts at the diaphragm and ends just above the pelvis. From there, it splits into two arteries, one for each leg. These are called the iliac arteries.

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.

Which is the last artery to give off 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. Over its entire course, the aortic arch lies in the superior mediastinum.

What is the function of the abdominal aorta?

The abdominal aorta conducts blood to organs in the abdominal cavity as well as to the legs and feet. Also, the aorta helps to control blood pressure by dilating and constricting as necessary.