MICROANATOMY

Detailed explanation-1: -Your descending aorta is the longest part of your aorta (the largest artery in your body). It begins after your left subclavian artery branches from your aortic arch, and it extends downward into your belly. It’s called your descending thoracic aorta until it reaches your diaphragm.

Detailed explanation-2: -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.

Detailed explanation-3: -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.