Human Anatomy and Physiology II
Exam 3, Version 4 - April 28, 1995
Dr. Chabot
Multiple Choice (@2 points): Circle the letter of the one best answer. GOOD LUCK!
Answer only 30 out of 33! The first 30 answered will be graded.
1. Which of the following is not a function of the circulatory system?
A. transportation of "chemicals"
B. regulation (body temperature, pH)
C. protection (against "foreign invaders")
D. none of the above
2. Proteins released by a variety of cells and which enhance the "killing" activity of macrophages are:
A. interferons
B. defensins
C. kinins
D. pyrogens
3. The function of basophils is to:
A. act as phagocytes
B. produce heparin or histamine
C. help to control allergic reactions
D. produce antibodies or killer T cells
4. Hemoglobin carries what percentage of O2 that is carried in the blood?
A. 27
B. 52
C. 85
D. 98
5. Which of the following is NOT part of the lymphatic system?
A. lymph vessels
B. spleen
C. lymph nodes
D. none of the above
6. An Rh negative mother will need to receive gamma globulin shots to protect her unborn child if:
A. the father is Rh negative
B. the father is Rh positive
C. the first baby born to this mother was Rh positive
D. the first baby born to this mother was Rh negative
7. The voice box is found in the:
A. larynx
B. pharynx
C. esophagus
D. nasal passages
8. The enzyme carbonic anhydrase generally:
A. converts CO2 into HCO3- in the body
B. converts HCO3- into CO2 in the lungs
C. converts CO2 into HCO3- in the lungs
D. converts HCO3- into CO2 in the body
9. When the parasympathetic nervous system controlling the heart is stimulated:
A. heart rate goes up
B. NE is released
C. blood pressure usually goes up
D. none of these
10. Red blood cells are produced:
A. in the spleen before birth/in the red bone marrow after birth
B. in the red bone marrow before birth/in the spleen after birth
C. in the spleen before birth/in the liver after birth
D. none of the above
11. The portion of the EKG that indicates the depolarization of the atria is the:
A. P potential
B. QRS potential
C. T potential
D. U potential
12. Most of the 12-15 clotting factors are produced in the:
A. red bone marrow
B. kidney
C. spleen
D. liver
13. After the loss of >10% of your blood "shock" can occur which is typified by:
A. sudden drop in blood pressure
B. an increase in the heart rate
C. an increase in blood pressure
D. A and B only
14. The name of the tissue that prevents valves from being "pushed backwards" during heart contraction is
A. bicuspidae
B. bundle of HIS
C. AV nodules
D. chordae tendinae
15. Blood is delivered to within less than 1 mm of every cell in the heart by:
A. diffusion through the ventricular and atrial walls
B. the left and right coronary arteries
C. the left and right cardiac arteries
D. the pulmonary circulatory vessels
16. Blood travels from the pulmonary vein into:
A. the pulmonary artery
B. the left atrium
C. the right atrium
D. the lungs
17. Which of the following statements is not true about capillaries?
A. They always have the same amount of blood flow through them
B. They are exceptionally thin-walled
C. They allow some fluid to leak out of them and into the tissues
D. They allow diffusion to take place through their walls
18. The _______ is the pacemaker of the heart.
A. SA node
B. AV node
C. Bundle of HIS
D. left atrium
19. Which of the following is true about arteries and veins?
A. Arteries are more elastic
B. Arteries are more muscular
C. Arteries have larger diameters
D. Arteries have thinner walls
20. Pace maker cells are spontaneously active due to:
A. the constant leak of Na+ ions into the cell
B. the K+ channel opening up upon depolarization
C. voltage dependent Na+ channels
D. the constant leak of Ca++ ions into the cell
21. Which of the following tissues would have the highest density of capillaries?
A. epidermis
B. fat
C. fast glycolytic skeletal muscle fibers
D. the brain
22. Which of the following does not occur within a few minutes after you cut yourself?
A. platelets start to stick together.
B. local vasoconstriction.
C. the blood clots.
D. monocytes migrate into the area.
23. Which of the following can cause a change in heart rate?
A. a change in body temperature
B. a change in emotional state
C. a change in artery stretch receptor information
D. all of these
24. Which of the following is not a clotting factor?
A. Ca++
B. thromboplastin
C. thromboplastinogen
D. prothrombin
25. A difference between HDL and LDL metabolism is that:
A. there are no HDL receptors in arteries
B. there are no LDL receptors in arteries
C. there are no LDL receptors in the liver
D. there are fewer LDL receptors in the liver
26. Blood pH can be regulated by:
A. adjusting ventilation rate
B. what you eat
C. the digestive tract
D. none of the above
27. During normal inspiration and expiration the "renewal rate" of lung air is approximately:
A. 80%
B. 60%
C. 50%
D. 25%
28. The pH (Bohr) effect:
A. increases O2 affinity in the body tissues and decreases O2 affinity in the lungs
B. decreases O2 affinity in the body tissues and increases O2 affinity in the lungs
C. has no effect on O2 affinity
D. always increases O2 affinity in all parts of the body
29. _____ in/of the skin is part of the "non-specific" defenses against micro-organisms.
A. Sweating
B. Continual sloughing off of cells
C. Low pH
D. Sebum
30. The most common type (by volume) of blood cell is a(n):
A. erythrocyte
B. leukocyte
C. thrombocyte
D. lymphocyte
31. The cells that function to produce antibodies are:
A. B cells
B. Helper T cells
C. Killer T cells
D. Suppressor T cells
32. A protein produced in the liver and functions to carry hormones and maintain osmotic pressure is
A. fibrinogen
B. albumin
C. globulin
D. none of the above
33. Killer T cells need _______ in order to kill micro-organisms
A. an antibody labeled organism
B. to be exposed to interleukin
C. pyrogens
D. A and B only
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FILL-INS (@2 points):
Complete the following sentences with the most appropriate (one) word.
Choose 10 out of 12 only.
1. Respiration rate is regulated by _______ levels in the blood.
2. All of your cells (except RBCs) have proteins on the outside cell membrane for self recognition called _______________.
3. The enzyme used by HIV to turn its RNA into DNA that is then incorporated into the host DNA is _______________.
4. The receptors for regulating respiration rate are located in the ____________.
FILL-INS (@2 points; continued)
5. The proteins that are released by monocytes and cause an increase in local body temperature are______.
6 and 7. List two ways in which lymphatic fluid can be affected/regulated _________, __________.
8. After your B cells have been stimulated by a foreign antigen some of these cells become ________ to provide immunity from subsequent exposure to the same antigen.
9. The specific lymphocyte that is "attacked" by HIV is called _________________.
10 and 11. Two functions of the lymphatic system are _____________ __________________.
12. The type of protein that can cause holes to be formed in bacteria cause vasodilation is __________.
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Essay/Short Answer (@ 10 pts). Answer only 2 of the following 3. The first 2 answered will be graded.
1) Draw and label the human heart and include arrows to indicate the direction of blood flow .
2) Provide a diagram showing the approximate volumes of: Inspiratory reserve, expiratory reserve, tidal volume, and dead space. (We drew this on the board in class).
3) Draw and label the respiratory system. Be sure to get detailed - more than one drawing may be necessary!