Sample Exam 3

BIO 132
Anatomy and Physiology II
Fall, 2011
Exam 3
Name:______________________________________
Course ID Number __________
Section 1
Answer questions 1 – 30 on the scan sheet.
1. Which of the following is NOT found in blood?
a. plasma
b. antibodies
c. hemocytoblasts
d. leukocytes
e. platelets
2. The hormone erythropoietin targets the ___________.
a. red bone marrow
b. kidney
c. liver
d. spleen
e. lungs
3. Which of the following are granulocytes?
a. monocytes
b. erythrocytes
c. eosinophils
d. lymphocytes
e. platelets
4. Which is the least numerous white blood cell in whole blood?
a. basophils
b. eosinophils
c. neutrophils
d. lymphocytes
e. monocytes
5. What is the first phase in the process of hemostasis?
a. platelet plug formation
b. coagulation
c. agglutination
d. vascular spasms
e. phagocytosis
6. People with Type AB + blood can safely receive red blood cells from people with___________.
a. Type AB + blood
b. Type O + blood
c. Type AB - blood
d. Type O - blood
e. all of the above

7. Which of the following statements is correct regarding the cardiovascular system?
a. The wall of the right ventricle is thicker than the wall of the left ventricle.
b. The blood in the vena cava is oxygen rich blood.
c. Only the atrioventricular valves allow a bi-directional (2 different directions) flow of blood.
d. The heart contains four chambers.
e. None of the above.
8. The ___________ is the outer (most superficial) layer of the heart.
a. endocardium
b. medulla
c. cortex
d. myocardium
e. epicardium
9. The ____________ is the chamber of the heart connected to the pulmonary veins.
a. right atrium
b. right ventricle
c. left atrium
d. left ventricle
10. Chordae tendineae are attached to ____________ and ____________.
a. AV cusps; Purkinjie fibers
b. Bundle branches; AV node
c. Papillary muscles; AV cusps
d. Semilunar valves; papillary muscles
e. Purkinjie fibers; papillary muscles
11. Which of the following is closest to the apex of the heart?
a. the atria
b. the papillary muscles
c. the aortic semilunar valve
d. the sinoatrial node
e. the tricuspid valve
12. Regarding Ca 2+ (calcium) in the process of excitation-contraction coupling of cardiac myocytes, which of
the following statements is FALSE?
a. Calcium enters from the extracellular fluid during the plateau phase of the action potential.
b. An increase in the amount of Ca 2+ that enters the sarcoplasm during excitation, will decrease the
strength of contraction of a cardiac myocyte.
c. Ca 2+ is released from the sarcoplasmic reticulum due to entry of Ca 2+ from the extracellular fluid.
d. Ca 2+ ultimately allows the binding of actin to myosin for cross-bridge cycling to occur.
e. In a cardiac myocyte that is in diastole, the intracellular Ca 2+ concentration is low.
13. Which of the following aspects of the electrocardiogram occurs during atrial repolarization?
a. P wave
b. QRS complex
c. P-Q segment (time between the P wave and QRS complex)
d. T wave
e. Q-T segment (time between the QRS complex and the T wave)

14. The amount of blood that is pumped out of a ventricle every minute is defined as the __________.
a. heart rate
b. blood pressure
c. stroke volume
d. cardiac output
e. systole
15. Contraction of the right ventricle moves blood through the ____________.
a. pulmonary semilunar valve
b. mitral valve
c. tricuspid valve
d. aortic semilunar valve
e. bicuspid valve
16. The volume of blood that fills the ventricles before they contract is called the ____________.
a. hematocrit
b. stroke volume
c. end diastolic volume
d. cardiac output
e. residual volume
17. A high frequency of action potentials generated by the sinoatrial node results in ____________.
a. fibrillation
b. tachycardia
c. hypotension
d. bradycardia
e. depolarization
18. Which of the following is NOT a property or a function of the sinoatrial node?
a. It conducts impulses within the heart.
b. It increases its action potential frequency in response to norepinephrine exposure.
c. It spreads the action potential into the atria.
d. It contracts to pump blood into the ventricles.
e. It provides the heart with an autorhythmic property.
19. During the cardiac cycle, the semilunar valves of the heart are closed:
a. when the atria are in systole.
b. when the ventricles are ejecting blood.
c. during the time between the QRS complex and the T wave of the ECG.
d. to prevent the movement of blood from the ventricles into the atria.
20. Which of the following vessels connected to the heart contains oxygen poor blood?
a. the pulmonary vein
b. the pulmonary trunk
c. the aorta
d. the carotid artery
e. none of the above

21. Another name for the left atrioventricular valve is the_________.
a. tricuspid valve
b. bicuspid valve
c. pulmonary semilunar valve
d. aortic semilunar valve
e. none of the above
22. ____________ are proteins that connect the cytoplasm of 2 adjacent cardiac myocytes.
a. Purkinjie fibers
b. Thin filaments
c. Thick filaments
d. Sarcomeres
e. Gap junctions
23. Which of the following occurs as a result of an increase in the contractility of cardiac myocytes?
a. a decrease in stroke volume
b. a decrease in blood pressure
c. an increase in cardiac output
d. an increase in heart rate
e. a decrease in blood flow
24. The innermost layer of all blood vessels is called the ____________.
a. tunica media
b. tunica mucosa
c. tunica externa
d. tunica interna
e. tunica sandwich
25. Most (~60%) of the body’s blood volume can be found in the ____________.
a. arteries
b. capillaries
c. veins
d. right atrium and right ventricle
e. left atrium and left ventricle
26. You measure the blood pressure of an individual as being 105 /75. The “75” refers to the ____________.
a. stroke volume
b. ventricular diastolic pressure
c. venous blood pressure
d. heart rate
e. atrial systolic pressure
27. _________________ is determined by the diameter of blood vessels.
a. Blood viscosity
b. Peripheral vascular resistance
c. Blood vessel length
d. Plasma volume
e. Hematocrit

28. Which of the following will cause a decrease in blood flow? Remember: Flow = Pressure /Resistance
a. a decrease in blood viscosity
b. an increase in heart rate
c. an increase in the blood volume
d. an increase in stroke volume
e. vasoconstriction
29. In which of the following blood vessels is systemic blood pressure the lowest?
a. artery
b. vein
c. arteriole
d. venule
e. capillary
30. An increase in the blood pressure sensed within the aorta will cause a(n):
a. increase in the vasoconstriction of systemic arteries.
b. increase in stroke volume.
c. secretion epinephrine from the adrenal glands.
d. decrease in heart rate.
e. all of the above.
Section 2
Answer questions 31 – 35 on the scan sheet using A = increase, B = not change, or C = decrease
The cause is described before the blank and the effect is described after the blank in all questions.
31. Cholinergic stimulation will ______________ the blood pressure.
32. An increase in the heart rate will _____________ cardiac output.
33. An increase in the preload on the heart will __________ the stroke volume.
34. Bradycardia will _______________ blood flow.
35. An increase in the hematocrit will _______________ blood flow through a vein.