List in order the types of blood vessels blood travels through as it goes from the heart to the body cells and back againWhat happens in the blood vessels near the body cells?

Answer 1

Well there are many sequences of blood vessels throughout the body, all connected. If you put all vessels together (veins, arteries, venules, arterioles, capillaries) in a single strand, you would have a long enough strand to reach twice around the earth! We'll start with the systemic circuit: and we'll start with the blood in the left side of the heart. Oxygenated blood from the lungs is brought to the heart by the pulmonary veins (keep in mind even though they are veins, they carry oxygenated blood, this is the only case a vein carries oxygenated blood in the body) and then ends up in the left atrium (left upper chamber of the heart), from here it is pumped into the left ventricle (bottom left chamber). This muscular part of the heart pumps out this oxygenated blood through the aorta now, which will be sent to various parts of the body via arteries. Oxygenated blood will travel through arteries, arterioles and finally capillaries where nutrients and wastes are exchanged by diffusion. Then blood travels through the very tiny capillaries where oxygen is given to cells and where cells give carbon dioxide back to the blood. This blood is now deoxygenated and ready to go back to the heart, so the blood now travels back to the heart by veins. The veins all collect in 2 common major veins called the superior and inferior vena cava which lead into the right atrium of the heart (upper right chamber), where blood is then pumped into the right ventricle (bottom right chamber) where it is then pumped through the pulmonary artery (carrying deoxygenated blood) to the lungs, and then the whole process takes place again with blood from the lungs back into the left atrium. Very simple actually! Blood takes usually 35-40 seconds to make a full circuit around the body.

Answer 2

i dont know in great detail but this is it roughly:

away from the heart the blood travels in arteries. at body cells it travels through the wall in the blood vessel to the cells. the blood travels back in the veins

Answer 3

As the blood is forced out of the heart during the systolic phase of contraction, it is pusched into the ascending aorta, then to the aortic arch, the descending aorta, then to various arteries depending on where the blood is going. Blood that is going away from the heart travels in arteries. Blood that comes back to the heart travels in veins, (side note: orignated probably from the french word, "to come", venir). The blood continues in the arteries to the muscle tissues, where it must pass through pre-capillary sphincters in order to enter the capillaries, where diffusion of oxygen and nutrients take place. After the blood is rid of the oxygen and nutrients, it makes its return to the heart by viens. However, some of the blood is taken by the lymphatic system to be brough through lymph nodes to be filtered and returned to circulartory system. Ultimately, the blood returns to the heart by either the inferior or superior vena cava. The blood enters through the right atrium, then into the right ventricle. The blood is then pushed to the lungs for the action of gas exchange. Back to the left atrium, then to left ventricle, and back to the aorta.

Answer 4

aorta->arteries->arterioles->capillaries->venules->veins

Answer 5

blood vessels in order