Hence, it drains deoxygenated blood from the upper chest wall, arms, neck, and head to heart. The combining of the two iliac veins coming from the legs forms the inferior vena cava, which is the largest vein in the body. The inferior vena cava drains blood from the lower parts of the body. Both superior and inferior vena cava open into the right atrium without valves. Vena Cava is the largest type of vein in the body, which drains deoxygenated blood from the body to the right atrium of the heart.
Vena Cava is the main type of veins in the body. Aorta is attached to the left ventricle of the heart. Vena Cava is attached to the right atrium of the heart. Aorta carries oxygenated blood throughout the body. Vena Cava returns deoxygenated blood from the body into the heart. Aorta: A single aorta begins at the left ventricle.
Vena Cava: Two types of venae cavae supply blood to the heart. Vena Cava has a thinner wall and wider lumen. Vena Cava: The tunica media of vena cava is thin. The walls of the capillaries are permeable to oxygen and carbon dioxide. Oxygen moves from the capillary toward the cells of the tissues and organs. Carbon dioxide moves from the cells and into the capillaries.
Blood leaves the capillary and enters the small venules. These venules become progressively larger vessels called veins. The vena cava are the two largest veins that carry blood into the right upper chamber of the heart the right atrium. The superior vena cava carries blood from the brain and arms into the top of the right atrium.
The inferior vena cava carries blood from the legs and abdominal cavity into the bottom of the right atrium. The vena cava are also called the "central veins". Central venous catheters are inserted with the tip in or close to the superior of inferior vena cava. Blood is pumped from the right side of the heart into the blood vessels of the lung. When blood enters the small capillaries of the lung called the pulmonary capillaries , fresh oxygen enters the blood and carbon dioxide is removed.
This is called " gas exchange " or " respiration ". Because this is the exchange of gases between the atmosphere and the bloodstream, it is also called " external respiration ". When freshly oxygenated blood reaches the capillaries of the tissues, oxygen moves from the blood toward the tissues, and carbon dioxide moves from the tissues toward the blood.
This is the difference between the aorta and vena cava. You can download PDF version of this article and use it for offline purposes as per citation note. Available here 2. Hoffman, Matthew. Available here. Samanthi Udayangani holds a B.
Degree in Plant Science, M. Your email address will not be published. Figure Heart. Figure Vena Cava. Leave a Reply Cancel reply Your email address will not be published. Aorta vs Vena Cava. Aorta is the largest artery in our body which carries oxygenated blood from the left ventricle of the heart towards the organs, muscles, and tissues. Vena Cava are the main veins which deliver deoxygenated blood from the lower and upper halves of the body into the right atrium of the heart.
Blood Pressure. In Aorta, there is a high blood pressure. In Vena Cava, there is a low blood pressure. Vessel Walls. Vena Cava has thinner walls. Vessel Lumen. Vena Cava has a wider lumen. Blood Composition. The aorta carries oxygen-rich blood. Vena Cava carries oxygen poor blood.
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