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What else can I help you with?
Do valves control the flow of blood from the artia to the ventricles?
No, it flows from the Right Atrium to the Right Ventricle then to the Left Atrium to the Left Ventricle. Hope this helps!
In longitudinal section how do the walls of the atria and ventricles differ?
In longitudinal section, the walls of the atria are thinner, and lined with pestinate muscles. The walls of the ventricles, meanwhile, are thick and muscular.
Another name for walls of ventricles?
Another name for the walls of ventricles is the Purkinje fibers.
How do the walls of the left chambers compare to the walls of the right chambers?
The walls of the left ventricles are very much thicker as compared to the walls of the right ventricle. The left ventricles has to push the blood to whole body. The right ventricle has to push the blood to the lungs only.
What causes the atrio ventricular valves to close?
The rise in pressure inside the ventricles, when the walls of the ventricles contract.
How do the walls of the atria compare with the walls of the ventricles and why?
The short Answer: The ventricles have thicker walls than the atrium simply because this is the part of the heart that does most of the pumping action by contracting. It has to be strong and fairly thick to cope with the pressure. (Ventricles have thicker walls than the atrium, which creates a higher blood pressure. The left ventricle has thicker walls because it needs to pump blood to the whole body. The wall of the left ventricle is 8-15 mm The right atrium's wall is approximately 2mm in thickness, due to the combined influence of the low pressure of this chamber and the ease of pumping to low pressure areas).
What is heart string?
Hold the valves to inner walls of ventricles
Why have the ventricles got thicker walls then the atria?
atria are just the receiving chambers, it is the ventricles that actually pump the blood into the pulmonary and systemic circuits
Functions of the atria?
They have thin walls and they collect blood before it enters the ventricles.
What happens when a persons ventricles have thinner walls then normal?
it breaks more easily
Why do arteries able to adjust to the high pressure of the blood when ventricles pump blood?
Because the have thicker walls and sensors in the walls
Why are the walls of left ventricles thicker than the walls of right ventricles?
Because the left ventricle pushes blood through most vessels in the body, so it's thicker because more force is needed for the contraction.
