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What is the path of blood from the heart to left zygomaticus muscles and back to the heart?
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Do smooth muscles prevent the backward flow of blood toward your heart?
No. Valves in the arteries are responsible for preventing back-flow of blood, not smooth muscles.
What do the coronary veins do?
It allows deoxygenated blood from the heart muscles to get back to the chambers of the heart to continue in the circulatory system.
What unique features of veins help move blood back to the heart?
1. Valves in the veins which stop blood flowing backwards 2. As the muscles around the veins contract (from general activity eg walking) they squeeze the veins, therefore forcing blood back to the heart (in just that direction because of valves)
Veins have cuplike?
Veins have cuplike valves that keep the blood from flowing backwards when the muscles are at rest. These valves open when the muscles contract to force blood back up toward the heart.
What blood vessel travels to the heart?
There is no blood vessel that pumps blood. Only the heart pumps blood. The veins have one way valves that help bring blood back to the heart assisted by the contraction of skeletal muscles.
What are found within the atrioventicular sulci?
The atria of the heart are separated from the ventricles by an area called coronary groove (sulcus). This contains the trunks of the coronary arteries which bring oxygenated blood to the heart muscles. On the back surface of the heart, the coronary sulcus contains the coronary sinus which receives venous blood from the heart muscles.
What kind of blood vessels are helped by contraction of skeletal muscles?
Both veins and arteries. The contracting muscles on all sides of the vessels squeeze the blood along in the dire tion it is travelling, either away from (arteries) or back to (veins) the heart. This helps the heart so that it doesn't have to do all the hard work itself. In other words exercise is good for your heart. Medicine calls it the skeletal muscle pump.
What organ converts blood from oxygen-rich to oxygen-poor?
oxygen rich blood gets pumped out of your heart to your arteries which carries the blood to your muscles. then your muscles use the oxygen. oxygen poor blood goes into your veins to go back into your heart. then it goes through a cycle that takes your blood to your lungs, to get oxygen. this process is repeated.
Which muscles are used to make a new heart?
The Back muscles are used to make the new heart. :)
Do arteries carry blood back to the heart?
No, from the heart. The veins carry the blood back to the heart.
How is blood kept moving in the veins of the legs?
The muscles in your legs help transport blood back to your heart. The veins in your legs also have valves to help this process and prevent blood from flowing back down towards your feet.
How does blood flow back to the heart?
Muscle contraction in our extremities help squeeze blood back to the heart as the veins are under much lower pressure than the arteries. Additionally, the veins have one-way valves to keep blood flowing towards the heart when the vessels are squeezed by contracting skeletal muscles.
