blood and oxygen
what two things help the blood in veins return to the heart
two things that are next to the heart are veins and blood because veins are coming out of the heart and blood goes through the heart
The blood in veins is at a lower pressure than it is in the arteries. The lower pressure makes for challenges getting that blood back to the heart. As there is less force (pressure) in the veins, blood would pool in the lower parts of the body if there were not mechanisms to prevent that. There are three different things that help blood get back to the heart. The three mechanisms are: venous valves, muscular pumps, and the respiratory pump.
Oxygen and carbon dioxide are carried through blood.
it is when two cells are much bigger then oneoxygen and energy are the 2 things that are carried by blood to each body cell.
The blood in veins is deoxygenated (meaning that the oxygen has already been used throughout the body and is returning to the heart, then the lungs, so that the hemoglobin can be replenished with oxygen); whereas, the arteries carry oxygenated blood throughout the body. In summary, the veins carry LESS oxygenated blood than the arteries. HOWEVER, there are two situations where this is not true. This concept is reversed in fetal circulation AND in cardiac collateral circulation; therefore, a tip is to think of blood not in terms of oxygenated or deoxygenated but rather in terms of which way the blood flows from the heart. If blood flows from the heart to the body it is carried by and artery, conversely if it blood is carried from the body back to the heart by the body's veins.
it is when two cells are much bigger then oneoxygen and energy are the 2 things that are carried by blood to each body cell.
The jugular veins are the two main veins in the neck returning blood from the brain to the heart. Their arterial counterparts are the carotid arteries.
There are two veins that carry oxygen they are the Pulmonary vein and the Umbilical vein:-)
blood capillaries
blood travels away from the heart through arteries and blood travels to the heart through the veins
veins and ur heart