American Military University SCIENCE 132Week 3 Quiz
Week 3 Quiz
Return to Assessment List
Comment:Joshua,
Your short answer and lab report questions
... [Show More] for week 3 have been graded.
Scott Nunnelly
Part 1 of 7 - 15.0/ 15.0 Points
Question 1 of 32
3.0/ 3.0 Points
Which of the following is the primary function of red blood cells?
A. To bind and carry away waste products from most cells of the body.
B. To bind some ions and molecules in the blood which are not water-soluble.
C. To help fight off infection as part of the immune system.
D. To help in the process of hemostasis, the stoppage of blood flow following damage to
a blood vessel.
E. To carry oxygen from the lungs to all cells of the body; to carry some carbon dioxide
from the cells back to the lungs.Feedback:Good work; your answer is correct!
Question 2 of 32
3.0/ 3.0 Points
What is the most common leukocyte in the human body?
A. neutrophils
B. natural killer (NK) cells
C. lymphocytes
D. basophils
E. eosinophils
Feedback:Good work; your answer is correct!
Question 3 of 32
3.0/ 3.0 Points
Lymphocytes can be classified in the following group or groups:
A. monocytes
B. B-cells
C. T-cells
D. natural killer (NK) cells
E. Answers B, C, and D are correct
Feedback:Good work; your answer is correct!
Question 4 of 32
3.0/ 3.0 Points
What is the typical lifespan of a leukocyte?
A. The lifespan of a leukocyte typically is measured only in hours or days.
B. The lifespan of a leukocyte is extremely variable, measuring in hours to years or
decades.
C. The lifespan of a leukocyte is approximately 120-150 days.
D. Many leukocytes can live indefinitely if they are in well-protected locations.
E. Because all leukocytes are unable to undergo mitosis (cell division), their lifespan is
usually only a few seconds.
Feedback:Good work; your answer is correct!
Question 5 of 32
3.0/ 3.0 Points
Which of the following is/are important in the process named coagulation?
A. Coagulation is a complicated cascade of reactions that result in the formation of a
mesh of fibrin.
B. Coagulation is a very simple and straight-forward series of only two or three steps.
C. Coagulation can only occur in the presence of two or three different “clotting factors.”
D. Neither an excess number of platelets nor having many too few platelets in the blood
stream will cause any serious reaction.
E. A process which can reverse coagulation, named anticoagulation, can only occur when
one or more medications are administered to the body.
Feedback:Good work; your answer is correct!
Part 2 of 7 - 9.0/ 15.0 Points
Question 6 of 32
0.0/ 3.0 Points
The arteries that supply blood to the myocardium of the heart are called:
A. penetrating arteries
B. valvular arteries
C. pericardial arteries
D. coronary arteries
E. myocardial arteries
Feedback:The right coronary artery and left coronary artery together supply blood to all the cells
of the myocardium.
Question 7 of 32
3.0/ 3.0 Points
Which of the following statements is/are correct when describing heart sounds?
A. In a normal, healthy heart, there are only two audible heart sounds: S1 and S2.
B. The normal heart sounds do not have anything to do with the opening or closing of a
heart valve.
C. A heart murmur is always considered to be a normal heart sound.
D. Normally you will hear at least three or four heart sounds.
E. Very few individuals are able to hear any heart sounds.Feedback:Good work; your answer is correct!
Question 8 of 32
3.0/ 3.0 Points
Which of the following statements about valves in the heart is/are true?
A. A valve enables blood to only flow in one direction.
B. A valve keeps blood from flowing in a reverse direction.
C. All of the valves open when the blood pressure on one side of the valve is higher than
on the other side of the valve.
D. Statements A and B are correct. Statement C is incorrect.
E. Statements A, B, and C are correct.
Feedback:Good work; your answer is correct!
Question 9 of 32
0.0/ 3.0 Points
The period of time that begins with contraction of the atria and ends with ventricular relaxation is
known as:
A. an ECG.
B. systole.
C. the P-wave.
D. diastole.
E. the cardiac cycle.
Feedback:From your readings, you learned that the period of time that begins with contraction of
the atria and ends with ventricular relaxation is known as the cardiac cycle.
Question 10 of 32
3.0/ 3.0 Points
Which of the following statements are considered to be normal?
A. Normal heart rates vary from 30 beats/minute up to 200 beats/minute.
B. A heart rate less than or equal to 60 beats/minute is called bradycardia.
C. A heart rate greater than or equal to 100 or 120 beats/minute is called tachycardia.
D. A person’s heart rate will change depending on the needs of the body.
E. B, C, and D are all correct.
Feedback:Good work; your answer is correct!
Part 3 of 7 - 12.0/ 18.0 Points
Question 11 of 32
3.0/ 3.0 Points
Systolic pressure minus diastolic pressure is another term for:
A. peripheral resistance
B. Cardiac output
C. Pulse pressure
D. Stroke volume
E. Mean arterial pressure (MAP)
Feedback:Good work; your answer is correct!
Question 12 of 32
3.0/ 3.0 Points
The following is a list of vessels. Place them in the order that blood would go through entering
the systemic circulation. 1. Left ventricle 2. Aorta 3. Vena cavae 4. Pulmonary trunk 5.
Pulmonary veins 6. Right atrium 7. Right ventricle 8. Left atrium
A. 6, 7, 3, 5, 2, 1, 4, 8
B. 3, 6, 7, 4, 5, 8, 1, 2
C. 8,1,3, 6, 7, 5, 2, 4, [Show Less]