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Human Body Fluids and Circulation

Biology ⇒ Human Biology

Human Body Fluids and Circulation starts at 9 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Human Body Fluids and Circulation. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
Describe the role of the atrioventricular (AV) valves in the heart.
Describe the role of the sinoatrial (SA) node in the heart.
Explain the difference between pulmonary and systemic circulation.
Explain why the left ventricle has a thicker wall than the right ventricle.
Explain why veins appear blue under the skin, even though blood is never truly blue.
Name the valve that prevents the backflow of blood from the left ventricle to the left atrium.
A patient has a blood pressure reading of 150/95 mm Hg. Is this considered normal? (Yes/No)
Calculate the cardiac output if the heart rate is 75 beats per minute and the stroke volume is 70 mL per beat.
A person with blood group B can receive blood from which of the following groups? (1) A and B (2) B and O (3) A and AB (4) O and AB
Which blood cells are primarily responsible for fighting infections? (1) Erythrocytes (2) Leukocytes (3) Platelets (4) Chondrocytes
Which of the following blood groups can receive blood from any group? (1) A (2) B (3) AB (4) O
Which of the following is a function of platelets? (1) Oxygen transport (2) Blood clotting (3) Hormone production (4) Antibody production
Fill in the blank: The __________ node is known as the pacemaker of the heart.
Fill in the blank: The exchange of gases between blood and tissues occurs in the __________.
Fill in the blank: The largest artery in the human body is the __________.
Fill in the blank: The process of blood cell formation is called __________.
A patient has a blood pressure reading of 150/95 mm Hg. Is this considered normal? (Yes/No)
True or False: Arteries always carry oxygenated blood.
True or False: Capillaries have thicker walls than arteries.
True or False: The hepatic portal vein carries blood from the digestive organs to the liver.