Match the following terms describing the physical/mecahnical events with the cor
ID: 227021 • Letter: M
Question
Match the following terms describing the physical/mecahnical events with the correct phases of the cardiac cycle. Each phase may be used more than once.
All 4 cardiac valves are closed and all 4 chambers are relaxed during this phase.
The maximum amount of blood is in the ventricles at the end of this phase.
The pressure in the ventricles is higher than in the atria, but lower than in the arteries, during this phase.
The semilunar valves are open and the AV valves are closed during this phase.
The atria contract at the end of this phase.
The pressure in the ventricles is higher than the pressure in both the atria and the arteries during this phase.
Systole begins with this phase.
ventricular ejection
ventricular filling
isovolumetric relaxation
isovolumetric contraction
Question Selected MatchAll 4 cardiac valves are closed and all 4 chambers are relaxed during this phase.
The maximum amount of blood is in the ventricles at the end of this phase.
The pressure in the ventricles is higher than in the atria, but lower than in the arteries, during this phase.
The semilunar valves are open and the AV valves are closed during this phase.
The atria contract at the end of this phase.
The pressure in the ventricles is higher than the pressure in both the atria and the arteries during this phase.
Systole begins with this phase.
All Answer Choices A.ventricular ejection
B.ventricular filling
C.isovolumetric relaxation
D.isovolumetric contraction
Explanation / Answer
All 4 cardiac valves are closed and all 4 chambers are relaxed during this phase. - isovolumetric relaxation
The maximum amount of blood is in the ventricles at the end of this phase - isovolumetric contraction
The pressure in the ventricles is higher than in the atria, but lower than in the arteries, during this phase. - ventricular filling ( because blood flows from higher to lower pressure area and while filling of ventricles the ventricles have low pressure and arteries have high pressure. )
The semilunar valves are open and the AV valves are closed during this phase - ventricular ejection ( AV valves closes such that the blood is not moved backward and semilunar valve opens allows blood to flow outside)
The atria contract at the end of this phase. - ventricular filling ( increases pressure in the ventricle and ready to contract)
The pressure in the ventricles is higher than the pressure in both the atria and the arteries during this phase. - ventricular ejection ( Due to high presssure in the ventricles the blood flows to lower pressure region , the arteries)
Systole begins with this phase.- isovolumetric contraction ( AV valves closes and is ready to eject blood and hence systole begins here)
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