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STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
Bicuspid and tricuspid valve opens when
  • A
    Blood from the right ventricle and left ventricle into pulmonary artery and aorta, respectively
  • B
    Blood from the pulmonary vein and vena cava flows into left and right atria, respectively
  • ✓
    Blood from the right and left auricle into right and left ventricle, respectively
  • D
    None of these
✓

Answer

Correct option: C.
Blood from the right and left auricle into right and left ventricle, respectively
c
The cuspid valve opens when blood flows from the right/left atrium to the right/left ventricle. Then the flaps close to prevent the blood that has just passed into the ventricle from flowing backward.

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