Veins

To symbolize that arteries carry blood that's rich in oxygen while veins carry blood that's low on oxygen.

The heart valves and also the electrical impulses send to the musculoskeletal system.

arteries.

Blood vessels are the tubes through which blood travels. They include veins, capillaries, and arteries.

the aorta

Blood vessels are the tubes that carry blood. Blood vessels include arteries, veins, and capillaries.

Retinal veins are larger than retinal arteries. Retinal veins are between 2/3 to 3/4 times larger than the arteries of the retina. Retinal vein are also darker red then the arteries.

artery

No , pero si es por seguridad te recomiendo que lo agas en estados unidos a mi me isieron sirujia en mi ensilla para quitarme un pedaso de calsio que estaba quresiendo y fue muy rapido una hora sin dolor el primer dia es una dieta de liquidos pero al segundo dia puedes comer mas y nada mas me cobraron $500,00 dlls . suerte

yes.

I think because you don;t need as much blood when you're not using your muscles

Is a mixtures of oxygenated blood with some deoxygenated blood. It results in reduction of arterial PO2 by 2mmHg and reduction of arterial oxygen saturation by 0.5% compared to oxygenated blood coming from alveolar capillaries

Doing it slowly may help

I recently took Venacura tablets for two months, with absolutely NO RESULTS WHATSOEVER regarding spider veins. It is as ineffective as all other products on the market, such as vitamin K, Dermal-K, etc. Sorry, folks: Another sham. Save your money, or spend it on the only effective treatments provided by dermatologists, saline injections and laser.

The facial vein has no valves

http://en.wikipedia.org/wiki/Facial_vein

Arteries are larger and have more power from the heart therefore arterial bleeding is more profuse than bleeding from a vein.

In the field this is presents a challenge. If the first responder can control bleeding (internal, external) until the patient is in the operating room, a good vascular surgeon can save this one, so it's not necessarily instantly nor universally fatal. The answer to this question depends on the amount of blood loss. Complete severing of the subclavian, jugular or either inominate with no control whatsoever results in massive blood loss. I'd say you have max 1-3 minutes before mortality. However, anything that controls bleeding increases that time, and I would not say this injury 100% lethal. Some of the factors invovled are: * Size and margins of the rupture -- large, irregular wounds in vessels are a lot harder to control than small, clean wounds. * Location -- is it somewhere that you can get to with pressure? Is there an open wound that will facilitate access? * Is the bleed internal, external or both? * Is the vessel functionally severed?

Arteries are the tubular organs that carry blood from the heart. The aorta is the main artery of the systemic circulation, and the pulmonary artery is the main artery of the pulmonary circulation.

The big vein on the left side of your neck or under your wrist. I also found that you can find your pulse on the side of your right foot.

The kidneys monitor oxygen levels in blood and if they are low then the kidneys release erythropoetin in to the blood stream. Red bone marrow cells have erythropoetin receptors and start to produce erythrocyte's in the bone marrow, then they go into the blood stream. This goes on until leaves are back to normal. Since there are more blood cell there is more oxygen carrying capacity.

Veins, capillaries and arteries is that they are all stops for blood.

Because the arteries wouldn't be able to have blood flow through your body unlike arteries veins are through out your whole body so they can transport blood through your whole body, veins keep your blood circulating

Not in a healthy person, unless there is a cut in the blood vessel. Someone with high cholesterol or other health problems might have a clot occur otherwise, but those will typically be in capillaries, as they are more narrow.

Because arteries are narrower, thus increasing the pressure in the arteries. So you need thicker walls to contain the blood under pressure.

kidneys the nephrons in your kidneys, hence renal artery