Zoology-Cardiac Cycle
NEET Zoology Cardiac Cycle MCQ Question
Type: MCQ-fact-Medium-Class 11
What occurs when the ventricular pressure falls during the cardiac cycle?
A
The semilunar valves close to prevent backflow.
B
The atria contract to push blood into the ventricles.
C
Blood is ejected from the ventricles into the arteries.
D
The tricuspid and bicuspid valves close tightly.
Correct Answer
Option A
Detailed Explanation
As the ventricular pressure declines, the semilunar valves close to prevent the backflow of blood into the ventricles, according to the NCERT context on the cardiac cycle.
Found an issue with this question?
Related Questions
More from
Which of the following statements about blood composition is correct?
Blood CompositionZoology
Which protein in blood plasma is primarily needed for the clotting or coagulation of blood?
Blood CompositionZoology
What percentage of blood is composed of formed elements such as erythrocytes, leucocytes, and platelets?
Blood CompositionZoology