Download Use the options given below for questions 10 to 14

Practice Test I
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1. Which of the following is a regulatory function of blood?
a. Delivery of oxygen to body tissues
b. Transport of metabolic wastes from cells
c. Prevention of blood loss
d. Maintenance of normal pH
e. None of the above
2. The process by which formed elements are produced is:
a. Homeostasis
b. Hemoptisis
c. Hemopoiesis
d. Hemostasis
e. None of the above
3. Which of the following will trigger erythropoiesis?
a. Increased tissue demand for oxygen
b. Decreased tissue demand for oxygen
c. An increased number of RBCs
d. Moving from high altitude to low altitude
e. Decreased carbon dioxide in the blood
4. The most abundant plasma protein is:
a. Globulin
b. Fibrinogen
c. Albumin
d. Thromboplastin
e. Billirubin
5. When neither anti-A nor anti-B clots on a blood plate, the blood type is:
a. A
b. B
c. AB
d. O
e. The blood group cannot be determined
6. Which of the following statements about hematocrit is NOT true?
a. The percentage of whole blood contributed by leucocytes
b. It is determined by centrifuging whole blood
c. Can increase during dehydration
d. Sex differences is dependent on circulating androgens
e. Can decrease as a result of internal bleeding
7. Serum could be produced when:
a. Albumin is removed from the whole blood
b. Fibrinogen is removed from whole blood
c. Whole blood is centrifuged after an anticoagulant is added
d. Globulins are removed from whole blood
e. Hemoglobin is removed from whole blood
8. Which of the following is NOT a phase of hemostasis?
a. Vascular spasm
b. Fibrinolysis
c. Platelet plug formation
d. Coagulation
e. More than one answer is correct
Use the options given below for questions 10 to 14
a. Neutrophil
b. Monocyte
c. Eosinophil
d. Lymphocyte
e. Basophil
9. Most common white blood cell in whole blood
10. Mounts an immune response by direct attack via antibodies
11. Kills parasitic worms
12. Becomes a macrophage
13. Release histamine and heparin
14. A knife plunged into the fifth intercostal (left) space will:
a. Pierce the aorta
b. Pierce the base of the heart
c. Pierce the atria
d. Pierce the apex
e. Completely miss the heart
15. The connective tissue layer of the myocardium is vascularized.
a. True
b. False
16. The fibrous skeleton of the heart:
a. Supports the valves
b. Anchors the blood vessels
c. Provides electrical insulation to separate the atrial mass from the
ventricular mass
d. Anchor cardiac muscle fibers
e. All of the above
17. Which of the following is NOT associated with the right atrium?
a. Fossa ovalis
b. Tricuspid valves
c. Chordae tendinae
d. Pectinate muscle
e. Coronary sinus
18. A surface feature associated with the circumflex artery is the:
a. Right coronary sulcus
b. Anterior interventricular sulcus
c. Left coronary sulcus
d. Posterior interventricular sulcus
e. None of the above
19. The semilunar valves are held closed by:
a. Pectinate muscle
b. Trabeculae carnae
c. Chordae tendinae
d. Fibrous capsule
e. None of the above
20. During atrial systole:
a. The atrial pressure exceeds ventricular pressure
b. 75% of ventricular filling occurs
c. The AV valves are closed
d. Valves prevent backflow into the venae cavae
e. The ventricle is passively filling
21. Compared to skeletal muscle, which of the following characteristics are unique to
cardiac muscle?
a. Gap junctions
b. Branching fibers
c. Intercalated discs
d. Centrally placed nucleus
e. All of the above
22. Calcium slow channels are open in cardiac muscle cell plasma membrane during:
a. Depolarization
b. Repolarization
c. Plateau
d. Resting membrane potential
e. None of the above
23. Which of the following depolarizes next after the AV node?
a. Bundle of His
b. SA node
c. Atrial myocardium
d. Ventricular myocardium
e. Purkinje fibers
24. The coronary sinuses prevent the cusps of the semilunar valves from sticking unto
the walls of the aorta.
a. True
b. False
25. Which of the following will have a positive chronotropic effect on the heart?
a. Epinephrine
b. Norepinephrine
c. Thyroid hormone
d. All of the above
e. None of the above