Biologymedium · Past Paper
Which valves prevent the backflow of blood from the ventricles into the atria?
ASemilunar valves
BAtrioventricular valves
CAortic valves
DPulmonary valves
✓ Correct Answer: B — Atrioventricular valves
Atrioventricular (AV) valves, including the bicuspid and tricuspid valves, prevent blood from flowing back into the atria.
Share this question
More from Biology
- Which hormone is responsible for the development of secondary sexual characteristics in males?
- What is the glomerular filtration rate (GFR) for a healthy adult?
- Which organ is affected by the disease Hepatitis?
- Which chemical is used to test the presence of starch in a leaf?
- Which structure in the eye is responsible for 'accommodation'?