Medical Quiz

Circulatory and Lymphatic System Quiz


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The superior vena cava:

A. carries blood from the heart

B. delivers blood to the cardiac muscles

C. receives blood from the upper extremities and head

D. delivers blood from the aorta to the right subclavian artery


Arteries carry blood:

A. towards the heart

B. away from the heart

C. in the heart


How are white blood cells different than red blood cells?

A. They are smaller and carry more nutrients

B. They are larger and have a nucleus

C. There are more kinds of red blood cells


The iliac vein:

A. carries blood away from the pelvic organs and lower abdomen

B. delivers blood from the aorta to the right subclavian artery

C. delivers nutrient rich blood from the intestines to the liver

D. delivers blood the the pelvis organs and lower abdomen


Which of the following arteries has the highest concentration of carbon dioxide?

A. aorta

B. carotid artery

C. pulmonary vein

D. mesenteric artery


Which of the following blood vessels contains blood with the highest concentration of dissolved oxygen?

A. aorta

B. femoral artery

C. subclavian artery

D. superior vena cava


Which of the following materials would be found in relatively high concentrations at the venous end of a capillary bed as compared to the arteriole end of a capillary bed?

A. glucose

B. oxygen

C. amino acids

D. carbon dioxide


What is the difference between the pulmonary vein and all the other veins of an adult?

A. It carries oxygen-poor blood, while the other veins carry oxygen-rich blood

B. It carries oxygen-rich blood, while the other veins carry oxygen-poor blood

C. It carries blood to the heart, while the other veins carry blood away from the hear

D. It carries blood away from the heart, while the other veins carry blood to the heart


Blood cells are formed here:

A. Bone Marrow

B. Brain

C. Heart

D. Liver


Select the correct composition of blood:

A. 55% plasma, <1% leukocytes, 45% erythrocytes B. 80% water, 4% neutrophils, 15% erythrocytes, 1% monocytes C. 45% plasma, <1% leukocytes, 55% erythrocytes D. <1% plasma, <1% leukocytes, 99% erythrocytes


We are all born with an innate immunity

A. TRUE

B. FALSE


What part of the body decreases the activity of the SA and AV nodes?

A. excretory system

B. respiratory system

C. sympathetic nervous system

D. parasympathetic nervous system


Skeletal muscle contractions account for the flow of blood in:

A. veins and arteries

B. arteries and capillaries

C. veins

D. arteries


How does the concentration of oxygen in the blood compare in the right ventricle and the left ventricle?

A. right ventricle has a low concentration of oxygen, left ventricle has a low concentration of oxygen

B. right ventricle has a low concentration of oxygen, left ventricle has a high concentration of oxygen

C. right ventricle has a high concentration of oxygen, left ventricle has a low concentration of oxygen

D. right ventricle has a high concentration of oxygen, left ventricle has a high concentration of oxygen


The fetal circulatory system is exactly the same as adult circulatory system.

A. TRUE

B. FALSE


Select the correct process of blood clotting:

A. Blood Vessel is punctured -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions -> fibrin threads form and trap red blood cells -> platelets congregate and form a plug

B. Blood Vessel is punctured -> fibrin threads form and trap red blood cells -> platelets congregate and form a plug -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions

C. Blood Vessel is punctured -> platelets congregate and form a plug -> platelets and damaged tissue cells release prothrombin activator, which initiates a cascade of enzymatic reactions -> fibrin threads form and trap red blood cells


The reason we always bleed when we are cut is because:

A. Our arteries are right under our skin

B. Even if the cut didn’t hit a vein, blood will need to come towards it in order to clot the cut closed

C. We have capillaries all over our body

D. The cut just happens to cut a vein every time


Select the true statement:

A. T cells are produced in the thymus

B. B cells are produced in the thymus

C. Defence by T cells is called antibody-mediated immunity

D. There are two major types of B cells: helper and cytotoxic




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