The human heart is a muscular organ which consists of four chambers and is responsible for the pumping of blood across the whole body. The heart possesses a network of blood vessels like arteries, veins and capillaries. Two of the five blood vessels that enter or leave the heart directly are the aorta and the pulmonary artery. Aorta is the largest artery, which carries oxygenated blood from the left ventricle of the heart to other parts of the body. In contrast, the pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs with the aim of purification.
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The biggest artery present in the human body is the aorta, which carries oxygenated blood from the heart to other parts of the body. High blood pressure is present within the aorta due to the transportation of oxygenated blood across the body, and thus the aorta is composed of thick walls.
The aorta is elastic and located at the top of the heart. An aortic valve is present at the entrance of the aorta from the left ventricle. The aorta is responsible for the systemic circulation of blood throughout the body.
The aorta is further composed of several arteries like the ascending and descending aorta, the aortic arch, the thoracic and the abdominal aorta. Baroreceptors and chemoreceptors are present at the aortic arch to monitor the blood pressure.
Some of the common diseases related to the aortic artery are aortic dissection, aortic aneurysm, atherosclerosis, aortic inflammation and connective tissue disorders.
The function of the pulmonary artery is to carry deoxygenated blood from the right ventricle of the heart to the lungs for purification. A pulmonary valve is present at the beginning of the pulmonary artery.
The pulmonary artery is located just below the aorta. It further divides into the right pulmonary artery and the left pulmonary artery, which also divide into smaller arteries, arterioles and capillaries. All of these, together with the pulmonary trunk and pulmonary aorta, form the pulmonary circulation.
Some of the frequent diseases related to the pulmonary artery include pulmonary embolisms and pulmonary hypertension.
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Aorta and pulmonary are two arteries present in the heart but have some critical differences among them. The following are some of the differences between the aorta and pulmonary artery:
Difference Between Aorta and Pulmonary Artery
Both the aorta and the pulmonary artery are important arteries of the body and are essential for the circulation of blood throughout the body. The primary difference between the aorta and pulmonary artery is that aorta carries oxygenated blood from the heart to other parts of the body while the pulmonary artery carries deoxygenated blood from the heart to the lungs to purify it.
The aorta originates from the left ventricle of the heart and branches into five other arteries. In contrast, the pulmonary artery arises from the right ventricle and branches into the left and right pulmonary arteries. The aorta has a thick wall around it as the blood pressure is high inside while the blood pressure in the pulmonary artery is lower. The aorta and pulmonary artery are located close to each other. The aorta is located at the top of the heart, while the pulmonary artery is located beneath it.
Did you know?
Usually, arteries carry oxygenated blood to various parts of the body. However, the pulmonary artery is the only artery which carries deoxygenated blood. This is the major difference between arteries and pulmonary arteries.