Courses

Circulation - Test 1


1. Insulin is an important protein for the regulation of glucose levels in the blood. Which statement best describes the function of insulin?
A. Insulin stimulates cells to absorb glucose from the blood.
B. Insulin causes the liver to release glucose into the blood.
C. Insulin facilitates the effects of antibiotics in the cell.
D. Insulin develops chemical bonds on the cell membrane.


2. One function of the circulatory system is to carry cellular nutrients to the body. Which part of the circulatory system is responsible for exchanging nutrients and wastes?
A. arteries
B. capillaries
C. heart
D. veins


3. What is the average life span of RBCs?
A. 120 seconds
B. 120 hours
C. 120 days
D. 120 years


4. Platelets are produced from which of the following cells?
A. Erythrocytes
B. Thrombocytes
C. Megakaryocytes
D. Lymphocytes


5. Which of the following are needed for clotting of blood?
A. Fibrinogen
B. Albumin
C. Globulin
D. Magnesium ions


6. Which has the greatest effect on aiding the movement of blood through the human body?
A. tension
B. friction
C. density
D. gravity


7. Which of the following is the most commonly used body fluid?
A. Blood
B. Plasma
C. Lymph
D. Serum


8. How do blood types differ from one another in the ABO blood classification?
A. Different sizes of red blood cells
B. Different sizes of white blood cells
C. Different marker proteins on red blood cells
D. Different marker proteins on white blood cells


9. _________ is a condition where plaque builds up on the inside of arteries:
A. Arthrocentesis
B. Arthralgia
C. Arthritis
D. Atherosclerosis


10. What percentage of plasma is present in blood?
A. 35%
B. 45%
C. 50%
D. 55%






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