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What is blood forced through the body by?
By your heart pumping the blood through your veins.
What assists in the movement of blood throgh the veins other than the beat of the heart?
As skeletal muscles contract, blood is forced along the veins to the heart.
Why are there more muscles to the bottom of the heart than at top?
The bottom of the heart is more muscular because that is where the blood exits the heart: deoxygenated blood has to be forced out of the right ventricle into the pulmonary artery, and oxygenated blood has to be forced from the left ventricle into the aorta - the force of the contraction is what sends the blood circulating all around the body & so it takes pretty hefty muscle to do the job.
Is blood pressure pushing against the walls of the heart?
When the heart contracts, blood is forced out of the organ at high speed and pressure. With every beat of the heart, another surge of blood pushes against the walls of the artery; this is called a pulse. You can feel a pulse at the wrists and neck.
What the function of valves?
Valves prevent blood from going backward.Valves in general open to allow or close to prevent liquid flow. Heart valves opens to let blood into the heart then close to keep it there so that when the heart muscle contracts and squeezes the blood it is then forced out into the arteries of the body.
What is the function of the valves?
Valves prevent blood from going backward.Valves in general open to allow or close to prevent liquid flow. Heart valves opens to let blood into the heart then close to keep it there so that when the heart muscle contracts and squeezes the blood it is then forced out into the arteries of the body.
What are the parts found at the left of the heart and right of the heart?
In the right side of the heart, there are the superior and inferior vena cavas. They bring deoxygenated blood from the rest of the body to the heart. The deoxygenated blood enters the right atrium of the heart and is pumped to the right ventricle. They are chambers which temporarily stores blood until they are pumped out. In between the two is the tricuspid valve which prevents the backflow of blood from the ventricle to the atrium when the ventricle contracts. When the ventricle contracts, blood is then forced out the semi-lunar valves and into the pulmonary artery, which is also on the left of the heart. In the left of the heart, there is the pulmonary vein, which brings oxygenated blood from the lungs to the heart (the left atrium) . The left atrium and the left ventricle are chambers as well. The bicuspid valve in between the two act like the tricuspid valve in the other side of the heart. When the left ventricle contracts, blood is forced out the semi lunar valves and into the aorta, through which blood is pumped out of the heart and around the body. In between the left and the right sides of the heart there is the septum, which separates the chambers of the heart and prevents the mixing of blood in the heart, which may lead to inefficiency of oxygen transport.
How are blood cells and platelets transported through the body?
Blood cells and platelets are suspended in blood plasma (mostly water) and moved through the body in blood vessels (arteries, veins & capillaries). The blood is forced through the blood vessels by the heart.
What is produced when the heart contracts?
What are you asking? The heat consists of 4 chambers (in humans) that contract (squeeze) and force blood through out the body, with the cycle constantly replenishing oxygen into the blood and delivering it to the rest of the body, returning the blood to the heat, and the cycle continues.
What is better forced worship or no worship?
It is all about the heart. If the person's heart is not in the right place, then it should not be forced. Thus no worship is better than forced.
What hormone dilates bronchioles increases heart rate?
There is not an actual hormone which increases blood pressure. However, the hormone adrenaline is secreted by the pituitary gland and has the effect of speeding up the contraction of the heart muscle. In turn this leads to increased blood pressure due to Fick's Law. The stroke volume of the heart has increased so more blood is being forced through the network of blood vessels
What are the names of the upper and lower blood pressure readings?
Blood pressure is the pressure of what the blood exerts on the walls of the blood vessels. The pressure, that the blood exerts on the wall of the blood vessel, depends on the the heart. When the heart (ventricles) contract, the blood is forced out and into the arteries. Since the blood it forced, the pressure is high. That gives you the higher reading, and it is called SYSTOLE. When the heart relaxes between contractions, blood is not forced into the artieries. But, the elastic walls of the arteries - which were streched by the force of the contraction before -, recoils, applying the pressure to the blood. That way the the blood keep flowing. Since this pressure is less then the pressure what the contraction gives, the reading will be lower. That lower reading is called DIASTOLE.
