breathing in, expands the chest which in turn lowers the pressure in the thoracic cavity. The lower pressure causes air to fill the lungs, the same lower pressure cause the pressure in the right atria to be lower, allowing for more blood to flow in, increasing the venous input thus increasing the cardiac output of the heart.
simply put, the cardiovascular systems sole purpose is to deliver oxygen to the organs. lets start with the left ventricle (largest part of the heart) pushing oxygenated blood to organs, 1st dibs on the best blood goes to the heart itself, then the aorta (largest artery) branches off and 2nd in line is the brain via the dual carotid arteries. the aorta then curves down and gives blood to organs and muscles and skin where capillary beds are. by the time the blood gets to the capillary beds its depleted of oxygen and returns to the lungs via the veins. veins return deoxygenated blood to the right atrium of the heart, the R. atrium pumps it to the R ventricle and it pumps the deox blood to the lungs. when the deox blood gets to the lungs it releases carbon dioxide it has picked up on the way to delivering oxygen. The hemoglobin in blood releases the CO2 and then grabs the oxygen. The left atrium then pulls the oxygenated blood from the lungs and dumps it into the L ventricle to be pumped to the body again. easier to see is this...
L ventricle--->arteries---->capillary beds----> veins----> R atria -----> R ventricle ----> lungs ----> L atria
The heart does that. The vein does not.
The heart is the strongest muscle in your body. It pumps ALL the blood in the circulatory system. The veins are the path to bring blood back to the heart.
Cardiovascular training is aerobic. You oxygenate your blood as it goes through the heart muscle because it travels through the lungs on its way around the circulation system.
cardiovascular system
The respiratory system works directly with the circulatory system when to oxygenate blood.
The heart, blood vessels, and blood cells are parts of the cardiovascular system.
it squirts out blood so the lungs can oxygenate that blood
The blood is part of the cardiovascular system.
blood vessels are a part of the circulatory system along with the blood and heart
The cardiovascular system work together with blood, blood vessels, and the heart.
To oxygenate blood and pump it throughout your body.
To oxygenate blood and pump it throughout your body.
The cardiovascular system and the circulatory system are the same. They consist of the heart, veins, blood vessels, arteries and blood supply.
The things that make up the cardiovascular system are the blood, blood vessels, and the heart. The job of the cardiovascular system is to move things such as blood, oxygen and nutrients through the body.