magnetism
Exercise leads to a decrease in blood pressure because it helps to strengthen the heart, improve blood flow, and reduce the amount of force needed to pump blood throughout the body. This can lead to a lower resting heart rate and more efficient circulation, ultimately lowering blood pressure.
The blood received by the right atrium is dark red because it is deoxygenated blood returning from the body tissues. Deoxygenated blood appears dark red due to the presence of deoxygenated hemoglobin.
The inferior vena cava carries deoxygenated blood from the lower body back to the heart. This blood is then pumped to the lungs to receive oxygen before returning to the rest of the body.
Some terminology first: The upper chambers = atria (singular atrium) The lower chambers = ventricles The atria are responsible for receiving blood: the right atrium receives deoxygenated blood from the body and the left atrium receives oxygenated blood from the lungs. The atria only pump this blood into the ventricles and therefore do not need particularly thick muscular walls. The ventricles on the other hand are responsible for pumping the blood received from the atria to the body. The right ventricle pumps the deoxygenated blood it receives from the right atrium out of the heart and into the lungs. On the other hand, the left ventricle is responsible for pumping the oxygenated blood received by the left atrium to the rest of the body. It is because of the this that the walls on the side of left ventricle are the thickest. The left ventricle requires "more muscle" than the right ventricle as the distance it has to pump the blood is far greater. So, SHORT ANSWER: The walls of the lower chambers/ventricles are thicker and more muscular than the walls of the upper chambers/atria because they have to pump blood out of the heart and to the body as opposed to the atria which only receive blood from the body and then pump into the ventricles.
Blood travels at an average speed of about 3-4 miles per hour in the body. Factors that influence its speed include the diameter of blood vessels, the viscosity of blood, and the force of the heart's contractions.
energy is the force check
Gravity.
Your heart pumps blood to all parts of the body.
The driving force that pulls interstitial fluid back into the capillaries is primarily osmotic pressure created by proteins in the blood, such as albumin. This osmotic pressure causes water to move from areas of lower solute concentration (interstitial fluid) to areas of higher solute concentration (capillaries), helping to maintain fluid balance in the body.
Gravitational Force
The force of gravity pulls you down when you are in water, just like when you are on land. The buoyant force from the water also acts on your body, helping to keep you afloat.
Gravity affects the circulation of blood in your body by helping to return blood from your lower extremities back to your heart. When you stand upright, gravity pulls blood downwards, making it harder for your heart to pump blood against gravity. This can lead to higher blood pressure in your lower extremities and can contribute to conditions like varicose veins.
A redout occurs when the body experiences a negative g-force that causes a blood flow from the lower parts of the body to the head. It is the opposite effect of a greyout.
The inferior vena cava brings blood from the lower parts of the body to the heart. The blood is deoxygenated.
The inferior vena cava is the large vein carrying blood back from the lower body.
delete and rephrase this odd question please... to answer THIS question... the same as the top of the body
In a healthy person, the blood pressure in the arteries of the lungs is usually lower than the pressure of the blood in the rest of the body because the blood is pumped from the weaker right side of the heart (a shorter distance from the heart) into the lungs.