3.2.2 Blood & Circulation 2 FMQuiz Homework Solution
Q. Name two common blood-grouping systems.
A. ABO and Rhesus
Q. The hepatic portal vein carries blood from the alimentary canal to the …
A. Liver
Q. Name the structure in the heart that controls the heartbeat.
A. Pacemaker
Q. State a possible effect of smoking on the pulse resting rate.
A. Raises rate
Q. Name the major blood vessels that carry blood from the heart to the lungs.
A. Pulmonary arteries
Q. Valves are present in veins. What is their function?
A. To prevent back flow of blood
Q. Name the major blood vessels that carry blood from the lungs to the heart.
A. Pulmonary veins
Q. Which has the bigger lumen (cavity), an artery or a vein?
A. Vein
Q. The wall of capillaries is only one cell thick. How is this related to their function?
A. Substances can diffuse easily into and out of capillaries
Q. Why are valves not needed in arteries?
A. Blood is under pressure as it is pumped from heart
Q. How does a portal vein differ from other veins?
A. Capillaries at both ends
Q. Name the blood vessels that carry blood from the aorta to the kidneys.
A. Renal arteries
Q. Name the chamber of the heart that receives blood back from the lungs.
A. Left atrium (auricle)
Q. Is the blood in the Aorta oxygenated or deoxygenated?
A. Oxygenated
Q. Give one reason why the wall of the left ventricle is thicker than the wall of the right ventricle.
A. Pumps blood further
Q. What is blood plasma?
A. Blood without cells or Watery liquid part of blood
Q. The ABO blood group system has four blood groups. What are these four groups?
A. A, B, AB, O
Q. Suggest a reason why it is important to know a person’s blood group.
A. When getting a transfusion or To avoid reaction by mother to foetus
Q. Give a role for blood plasma.
A. Transports dissolved substances
Q. What is the function of blood platelets?
A. Blood clotting
Q. What structure(s) protects the heart?
A. Rib-cage
Q. Name the upper chambers of the heart.
A. Atria or Auricle
Q. Name the valve between the upper and lower chambers on the left-hand side.
A. Bicuspid (mitral) valve
Q. Where in the body are white blood cells produced?
A. Bone marrow
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