MOVE CURSOR OVER ANSWERS: DO NOT CLICK MOUSE
1. For the average individual, total blood volume approximates how many liters?
A. 3
B. 4
C. 5
D. 6
2. Another name for red blood cells is:
A. Leukocytes
B. Erythrocytes
C. Platelets
D. Reticulocytes
3. A lowered red blood cell count is referred to as:
A. Anemia
B. Polycytehmia
C. Erythropoietin
D. Ferritin
4. Medium within blood where metabolites, hormones and nutrients circulate.
A. Serum
B. Transferrin
C. Plasma
D. Hemoglobin
5. The number of particles in solution.
A. Osmoality
B. Serum ratio
C. Plasma ratio
D. Electrolytes
6. What does preload mean?
A. The volume of blood left after systole
B. The stretch induced on the myocardium by the filling of the ventricles
C. The total volume and pressure in the atria and ventricles
D. The greater contractility potential of the ventricles
7. What does (vascular) compliance mean?
A. Contractility of arteries and arterioles
B. Elasticity of arteries
C. Limited ability arteries have to distend and increase vascular volume
D. Stretch of all vascular structures
8. Parasympathetic stimulation to heart tissue causes what to the action potential?
A. Graded potentials
B. Depolarization
C. Hyperpolarization
D. None of the above
9. SV increases with exercies intensity until what % of VO2max (untrained)?
A. 45%
B. 55%
C. 60%
D. 50%
10. This best describes the valsalva maneuver.
A. Forced expiration, increased pressure,elevated arterial pressure (trachea open)
B. Breath holding, increased pressure, elevated arterial pressure (trachea closed)
C. Forced inspiration, increased pressure, elevated arterial pressure (trachea open)
D. Forced expiration, increased pressure, elevated arterial pressure (trachea closed)
11. What does hemoconcentration mean?
A. Decreased hematocrit due to loss of plasma volume
B. Increased hematocrit due to loss of plasma volume
C. Increase in plasma volume
D. Decrease in plasma volume
12. Increased blood flow to muscle immediately following exercise?
A. Peripheral hypertrophy
B. Hyperdemia
C. Hyperemia
D. Passive hyperemia
13. Arteriole venous oxygen difference refers to what?
A. Increased hematocrit from increased plasma volume
B. Redistribution of of peripheral blood flow
C. Peripheral blood flow
D. Extraction of oxygen from the capillary bed
14. Which has a more linear reponse to increasing exercise: HR or O2
A. Heart rate
B. Oxygen consumption
C. Varies with fitness level
D. No difference
15. Heart rate monitors transmit a radio signal by a process called?
A. Telemetry
B. Electrocardiography
C. Conduction
D. None of the above
16. Ideally a max VO2 protocol should last how long?
A. 6 to 10 minutes
B. 8 to 12 minutes
C. 10 to 14 minutes
D. 10 to 16 minutes
17. What fiber type would be more associated with increased aerobic capacity?
A. Type IIb
B. Type IIa
C. Type I
D.Type IIc
18. Where does most of the lipid come from that fuels muscle contraction?
A. Mobilization of free fatty acids
B. FFA in plasma
C. Adipose tissue
D. Within contracting skeletal muscle
19. The atrial contraction or ‘Kick’ accounts for what % of ventricular filling?
A. 10%
B. 20%
C. 30%
D. 40%
More to Come