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

Calculate the cardiac output if the heart rate is 75 beats per minute and the stroke volume is 70 mL per beat.

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.

What is the function of the pericardium?

What is the main difference between open and closed circulatory systems?

What is the main function of hemoglobin in red blood cells?

What is the main function of the lymph nodes?

What is the normal range of systolic blood pressure in a healthy adult (in mm Hg)?

Which blood vessel carries oxygenated blood from the lungs to the heart?

Which chamber of the human heart receives deoxygenated blood from the body?

Which component of blood is mainly responsible for clotting?