pulmonary vein
there are both single and double circulatory systems.fish have single ones, and birds have double.in double circulatory system the blood travels trough the heart twice in it's way around the body, while in the single it only goes through the heart once.Answer by FutureLPGAgolferThe answer came from my homework and I got it right, it's the Open system and the Closed system.explain how number of exercises affects the breathing rate?
With one exception, veins carry oxygen-poor blood back to the heart. The largest and last blood vessel they pass through is called the superior vena cava. The exception is the Pulmonary Vein, which carries oxygen-rich blood from the lungs to the heart to be pumped to the rest of the body.
With one exception, veins carry oxygen-poor blood back to the heart. The largest and last blood vessel they pass through is called the superior vena cava. The exception is the Pulmonary Vein, which carries oxygen-rich blood from the lungs to the heart to be pumped to the rest of the body.
There are three blood vessels that carry blood to the heart in deoxygenated form. Superior vena cava that carries blood from upper parts of the body like brain etc. Then there is inferior vena cava that carries blood from lower body parts like legs etc. Last is pulmonary vein that brings oxygenated blood from lungs to the heart.
All veins (except for the pulmonary vein) receive and carry oxygen poor blood. This oxygen poor blood enters the heart through the superior & inferior venae cavae to the right atrium and ventricle. It is then carried by the pulmonary artery to the lungs for oxygenation.
WBCs live in circulation for about 30 days
With one exception, veins carry oxygen-poor blood back to the heart. The largest and last blood vessel they pass through is called the superior vena cava. The exception is the Pulmonary Vein, which carries oxygen-rich blood from the lungs to the heart to be pumped to the rest of the body.
Ventricles contract last, where the right ventricle contract to send deoxygenated blood to the lungs through the pulmonary artery, and the left ventricle contract to send oxygenated blood to the rest of the body via the aorta.
Aorta is thicker because it has greater pressure of outflow to deal with from the left ventricle. Blood leaving the heart into the aorta has great pressure because the blood has to be carried all over the body, whereas the pulmonary trunk only pumps blood to the lungs which is an area of lower pressure.
The blue blood enters through both the superior, and inferior vena cava. it is then goes to the right Atrium. The atrium sends the blood to the right ventricle, where it is next sent through a valve to the pulmonary artery, where it is sent to the lungs to be oxygenated. The blood comes back red through the pulmonary vein. It next goes to the the left atrium, and then to the left ventricle. Last, the blood travels to the Aorta, which is the largest vein in the body, and then gets pumped to the body, where later, comes back and repeats the process. The body is an amazing thing, but also a very confusing, and a complex thing. Hope I helped.
These are the last veins blood passes through on it's journey back to the heart they empty into the right atrium.
There are three blood vessels that carry blood to the heart in deoxygenated form. Superior vena cava that carries blood from upper parts of the body like brain etc. Then there is inferior vena cava that carries blood from lower body parts like legs etc. Last is pulmonary vein that brings oxygenated blood from lungs to the heart.