EASY
10th ICSE
IMPORTANT
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Name the vein that drains the blood from the intestine to the liver, whether it is great saphenous vein or Hepatic portal vein.

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Important Questions on Circulatory System

EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 29
Name the blood vessel carrying blood to the left atrium.
EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 30
Why mature erythrocytes in humans lack nucleus and mitochondria.
EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 30
Why blood flows in arteries in spurts and is under pressure.
MEDIUM
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 32
Why do the left ventricles of the heart have thicker walls than the right ventricles?
EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 33
Which parts of heart are in the diastolic phase? Give a reason to support your answer
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EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 33
What causes the heart sounds 'LUBB' and 'DUB'?
EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 33
Name the blood vessels that supply oxygenated blood to the heart muscles. (Coronary artery/ Coronary vein)
EASY
10th ICSE
IMPORTANT
ICSE Biology Book 2 for Class 10>Chapter 9 - Circulatory System>Solved Questions from ICSE Board Examination Papers>Q 33
Draw neat labelled diagrams of a cross section of an artery and a vein.