Exercise Physiology Practice Final

156 Questions  I  By Kingslo
Practice Final for exercise physiology

  
Changes are done, please start the quiz.


Question Excerpt

Removing question excerpt is a premium feature

Upgrade and get a lot more done!
1.  At rest, what is the filling time of the heart?
A.
B.
C.
D.
2.  During incremental exercise (check all that apply)
A.
B.
C.
D.
3.  During prolonged submaximal exercise in a hot/humid environment, ventilation tends to shift downward
A.
B.
4.  Receptors that are sensitive to force and speed of muscular movement
A.
B.
C.
D.
5.  A rough index of workload on the heart is also known as
A.
B.
C.
D.
6.  Carbon dioxide that is bound to hemoglobin is called carbaminohemoglobin
A.
B.
7.  The ______ represents atrial depolarization 
A.
B.
C.
D.
8.  At 150 - 200 beats per min, approx how long does it take to fill the heart
A.
B.
C.
D.
9.  Beta blocking drugs increase the myocardial oxygen demand
A.
B.
10.  Specialized cells located in the aortic and carotid bodies
A.
B.
C.
D.
11.  Oxygen demand by muscles during exercise is 10 - 15x greater than at rest.
A.
B.
12.  Decreased pH increases the Hb-O2 affinity thus resulting in a rightward shift of the curve
A.
B.
13.  Receptors that are sensitive to an increase in PCO2 exist.
A.
B.
C.
14.  Arterial PO2 and PCO2 are maintained relatively constant during a sub maximal exercise
A.
B.
15.  Systole during heavy exercise is longer than diastole during heavy exericse
A.
B.
16.  An increase in blood pressure results in
A.
B.
C.
D.
17.  When blood volume increases, blood pressure increases
A.
B.
18.  Function of this later of the heart serves as a lubricative outer covering
A.
B.
C.
D.
19.  Contraction of the heart depends on electrical stimulation of the _________
A.
B.
C.
D.
20.  What is atmospheric pressure at rest?
A.
B.
C.
D.
21.  In an untrained subject doing incremental exercise, ventilation increases linearly up to 
A.
B.
C.
D.
22.  At rest, expiration is passive
A.
B.
23.  The myocardium is mainly aerobic
A.
B.
24.  Autorhythmic cells depolarize spontaneously 
A.
B.
25.  The amount of blood pumped by the heart each minute is known as the _________
A.
B.
C.
D.
26.  Which formula is correct in calculating the Mean Arterial Pressure
A.
B.
C.
D.
27.  When HCO3- diffuses out of the RBC's into plasma
A.
B.
C.
D.
28.  The systemic circulation has lower pressure than the pulmonary circulation 
A.
B.
29.  Blood pressure above ____ is known as high blood pressure
A.
B.
C.
D.
30.  Current eveidence suggests that respiratory muscles fatigue at prolonged exercise lasting more than
A.
B.
C.
D.
31.  An untrained individual may have 30 percent of cardiac injury from a myocardial infarction
A.
B.
32.  Strength of ventricular contraction is enhanced by acetylcoline
A.
B.
33.  An increase in pulmonary ventilation causes exhalation of additional CO2, which results in a reduction of blood PCO2 and a lowering of hydrogen ion concentration
A.
B.
34.  Amount of air moved per breath (normal breathing)
A.
B.
C.
D.
35.  Hematocrit is a % by volume of packed blood cells after centrifugation
A.
B.
36.  _________ of elite endurance athletes experience hypoxemia during high intensity exercise (>90% VO2 max)
A.
B.
C.
D.
37.  When standing, most of the blood goes to the apex of the lung
A.
B.
38.  Which zone warms and humidifies the air?
A.
B.
C.
39.  Random movement of molecules from an area of high concentration to an are of lower concentration is known as osmosis
A.
B.
40.  The diaphragm is innervated by somatic motor neurons
A.
B.
41.  Receptors that are sensitive to muscle metabolites
A.
B.
C.
D.
42.  Arteries in the coronary circulation originate 
A.
B.
C.
D.
43.  Shortness of breathing is termed
A.
B.
C.
D.
44.  The cardiac cycle has 2 phases
A.
B.
45.  During prolonged exercise, cardiac output is decreases
A.
B.
46.  The vital capacity is 
A.
B.
C.
D.
47.  Baroreceptors are activated/stimulated when BP is too low
A.
B.
48.  The ventricles contract ___ sec after the atria
A.
B.
C.
D.
E.
49.  The average cardiac output is 6 L/m
A.
B.
50.  The typical lung capacity is at
A.
B.
C.
D.
51.  Chronic obstructive lung disease is linked with an increased expiratory airflow and an decreased inspiratory airflow due to constant airway narrowing
A.
B.
52.  The systemic circulation begins at the left side of the heart
A.
B.
53.  Vasoconstriction to visceral organs and inactive tissues are due to the SNS
A.
B.
54.  One should stop exercise if their exercise induced ST segment is greater than 1 mm
A.
B.
55.  The myocardium receives blood from the arota
A.
B.
56.  The intrapleural pressure is lower than atmospheric pressure
A.
B.
57.  Low partial pressure in the tissues increases the the chance of O2 release to tissues by Hb
A.
B.
58.  When peripheral resistance decreases, blood pressure increases
A.
B.
59.  During heavy exercise, the heart beats at ___ bpm
A.
B.
C.
D.
60.  Which of the following causes a rightward shift of the dissociation curve(check all that apply)
A.
B.
C.
D.
61.  Long term regulation by the mean arterial blood pressure is influenced by
A.
B.
C.
D.
62.  Training can lower exercise ventilation 20 - 30% lower at the same submaximal work rate
A.
B.
63.  When the diaphragm contracts, the lungs __________
A.
B.
C.
D.
64.  Blood flow is inversely proportional to resistance
A.
B.
65.  After leaving the myocardium, blood from the coronary circulation enters the coronary sinus
A.
B.
66.  During exercise, the SV plateaus at approx. 40-60% of VO2 max
A.
B.
67.  Sedentary individuals typically have a resting SV of 
A.
B.
C.
D.
68.  The ECG may indicate coronary heart disease
A.
B.
69.  Resistance depends on 
A.
B.
C.
D.
70.  Central chemoreceptors are located in the___________
A.
B.
C.
D.
71.  During the Frank Starling mechanism, increase preload will stretch the sarcomere from _______
A.
B.
C.
D.
72.  The heart cannot be excited if the sympathetic neurons connecting to it are cut off
A.
B.
73.  Plasma contains(check all that apply)
A.
B.
C.
D.
74.  Over __ of the O2 transported in blood is chemically bonded with hemoglobin
A.
B.
C.
D.
75.  When heart rate increase, blood pressure increases
A.
B.
76.  The pulmonary circuit
A.
B.
C.
D.
77.  At the onset of exercise, parasympathetic nerves fire thus increasing the HR 
A.
B.
78.  The atria relaxes during ventricular systole
A.
B.
79.  At rest, the breathing rhythm is dominated by pacemaker neurons in the 
A.
B.
C.
D.
80.  The amount of air moved in and out of the lungs per min
A.
B.
C.
D.
81.  Pulse pressure is the difference between systolic and diastolic pressure
A.
B.
82.  Airway collapse; air is trapped in the lungs
A.
B.
C.
D.
83.  During prolonged exercise, the cardiac output is maintained due to a decrease in stroke volume and an increase in HR.
A.
B.
84.  As the VO2 max increase the double product decreases
A.
B.
85.  The typical value for the tidal volume is 
A.
B.
C.
D.
86.  HCO3- is a strong acid
A.
B.
87.  Hypertension can cause(check all that apply)
A.
B.
C.
D.
88.  Hydrogen binds to Hb to prevent acidity
A.
B.
89.  Resting systole of the ventricles is longer than diastole
A.
B.
90.  Max heart rate is found by subtracting ones age from 230
A.
B.
91.  Amount of blood ejected in each beat is known as the _______
A.
B.
C.
D.
92.  Systolic pressure provides an indication of peripheral resistance
A.
B.
93.  Cardiac output and total vascular resistance influence mean arterial pressure
A.
B.
94.  Beta blocking drugs increase heart rate
A.
B.
95.  Receptors that are sensitive to change in arterial blood pressure.
A.
B.
C.
D.
96.  The primary drive to increase ventilation during exercise in from higher brain centers
A.
B.
97.  The tidal volume x the alveolar ventilation will give you the amount of air moved in and out of the lungs per minute
A.
B.
98.  The pulmonary system limits exercise performance in healthy young subjects during prolonged submaximal exercise (work rates (<90% VO2 max)
A.
B.
99.  Volume of air space that reaches the respiratory zone
A.
B.
C.
D.
100.  The O2 content of blood (100% Hb saturation) for females is typically
A.
B.
C.
D.
101.  Carbon dioxide is transported in ONLY 3 blood forms
A.
B.
102.  The Ocontent of blood (100% Hb saturation) for males is typically
A.
B.
C.
D.
103.  There are 2 types or Humoral receptors
A.
B.
104.  Each gram of Hb can transport ____
A.
B.
C.
D.
105.  Which vessels create the most resistance
A.
B.
C.
D.
106.  The pacemaker of the heart is known as the _________
A.
B.
C.
D.
107.  During heavy or submaximal exercise, a linear rise in ventilation is due to _________(check all that apply)
A.
B.
C.
D.
E.
108.  During prolonged exercise in a hot/humid environment, ventilation "drifts" upward due to the influence of rising body temperature on the respiratory control center
A.
B.