Exercise Physiology Chapter #9 Quiz
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- 1.Arteries and arterioles
- A.
Carry blood toward the heart
- B.
Carry blood away from the heart
- 2.Veins and Venules
- A.
Exchange O2 and CO2 and nutrients between tissues
- B.
Carry blood away from the heart
- C.
Carry blood to the heart
- D.
All of the above
- 3.The right side of the heart is the
- A.
Pulmonary circuit
- B.
Systemic circuit
- 4.The left side of the heart pumps blood
- A.
To the body
- B.
To the lungs
- C.
To the right side of the heart
- 5.Oxygenated blood returns to the right side of the heart via veins
- A.
True
- B.
False
- 6.Oxygenated blood returns to the left side of the heart via the pulmonary artery
- A.
True
- B.
False
- 7.Left side of the heart pumps blood to the body via the aorta
- A.
True
- B.
False
- 8.Blood flows from the right arrium to the right ventricle via
- A.
Tricuspid value
- B.
Bicuspid value
- C.
Pulmonary semilunar value
- D.
Aorta semilunar value
- 9.Blood flows to the left artium from the pulmonary vein
- A.
True
- B.
False
- 10.The left and right side of the heart are divided by
- A.
Epicardium
- B.
Myocardium
- C.
Endocardium
- D.
Septum
- E.
Two of the above
- 11.The endocardium provides the muscular contraction that eject blood from the heart chambers
- A.
True
- B.
False
- 12.The protective inner lining of the chambers is the
- A.
Septum
- B.
Epicardium
- C.
Endocardium
- D.
Myocardium
- 13.The coronary vessels are located in the
- A.
Myocardium
- B.
Septum
- C.
Epicardium
- D.
Endocardium
- 14.CHR is usually associated with low levels of free radicals
- A.
True
- B.
False
- 15.The heart muscle receives its blood supply from
- A.
Pulmonary artery
- B.
Pulmonary vein
- C.
Coronary vessels
- D.
Superior vena cava
- 16.Myocardial Infarction is so called a heart attack
- A.
True
- B.
False
- 17.Blockage in the coronary vessels results in cardiac muscle damage
- A.
True
- B.
False
- 18.Exercise improves the function of ATP-sensitive potassium channels
- A.
True
- B.
False
- 19.Improved ATP-sensitive potassium channels
- A.
Improves antioxidant capacity
- B.
Reduces potassium overload
- C.
Reduces calcium overload
- D.
All of the above
- 20.Exercise improves the heart's antioxidant capacity
- A.
True
- B.
False
- 21.Select only the true statements about the heart muscle
- A.
Contracts via the sliding filament theory
- B.
Contains actin and myosin in the myocardium
- C.
It is striated
- D.
It is voluntary
- E.
All are true
- 22.A source of calcium for the heart comes from (check all that apply)
- A.
Septum
- B.
Extracelluar Calcium
- C.
Sarcolemma
- D.
Two of tha above
- 23.Heart muscle needs calcium for contraction
- A.
True
- B.
False
- 24.Calicum sources for the heart are (check all that apply)
- A.
Sarcolemma
- B.
Sarcoplasmic reticulum
- C.
Extracellular calcium
- 25.Cardiac muscle is smooth
- A.
True
- B.
False
- 26.Cardiac muscle is similar to skeletal muscle
- A.
True
- B.
False
- 27.How is cardiac muscle different then skeletal muscle (check all that apply)
- A.
It is fibers shorter
- B.
Has more mitrochondria then type I
- C.
No fiber type
- D.
Multiple nuclei
- E.
All are true
- 28.The arrangement of cardiac fibers via intercalated discs is called a __________
- 29.Cardiac muscle can repair itself via satellite cells
- A.
True
- B.
False
- 30.A difference between skeletal muscle and cardiac muscle in calcium storage
- A.
True
- B.
False
- 31.One cardiac cycle includes one systole and two diastole phases
- A.
True
- B.
False
- 32.Systole is the
- A.
Relaxation phase
- B.
Contraction phase
- 33.During diastole the heart
- A.
Fills with blood
- B.
Ejection of blood
- C.
Is in the relaxation phase
- D.
Two above
- 34.At rest the diastole is longer the systole
- A.
True
- B.
False
- 35.During exercise the systole is shorter but diastole remains the same
- A.
True
- B.
False
- 36.The average cardiac cycle takes
- A.
.3 sec
- B.
.5 sec
- C.
.8 sec
- D.
.95 sec
- 37.The average resting heart rate is
- A.
65bpm
- B.
75bpm
- C.
85bpm
- D.
92bpm
- 38.During heavy exercise the cardiac cycle is approx.
- A.
.33 sec
- B.
.5 sec
- C.
.7 sec
- D.
.8 sec
- 39.During diastole (check all that apply)
- A.
Pressue in the ventricles is low
- B.
Semilunar valves open
- C.
Ventricles fill with blood from the atria when atria pressure exceeds ventricular pressue
- 40.During systole the pressure in ventircles rises
- A.
True
- B.
False
- 41.The first sound of the heart beat is when the AV values close
- A.
True
- B.
False
- 42.During ventricular contraction the precent blood ejected is
- A.
100%
- B.
80%
- C.
70%
- D.
60%
- 43.The amount of blood in the right atrium that is moved to the ventricle is
- A.
100%
- B.
70%
- C.
30%
- 44.All the heart valves are closed during
- A.
Ventricular ejection
- B.
Isovolumetric ventricular contraction
- C.
Ventriclar Filling
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