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Exercise Physiology Practice Final

156 Questions  I  By Kingslo
Fitness Quizzes & Trivia
Practice Final for exercise physiology

  
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1.  Blood pressure above ____ is known as high blood pressure
A.
B.
C.
D.
2.  Carbon dioxide is transported in ONLY 3 blood forms
A.
B.
3.  Chronic obstructive lung disease is linked with an increased expiratory airflow and an decreased inspiratory airflow due to constant airway narrowing
A.
B.
4.  The pacemaker of the heart is known as the _________
A.
B.
C.
D.
5.  During exercise, the SV plateaus at approx. 40-60% of VO2 max
A.
B.
6.  The atria contract during ventricular diastole
A.
B.
7.  An untrained individual may have 30 percent of cardiac injury from a myocardial infarction
A.
B.
8.  An ST segment depression indicates myocardial infarction 
A.
B.
9.  The pulmonary system limits exercise performance in healthy young subjects during prolonged submaximal exercise (work rates (<90% VO2 max)
A.
B.
10.  Amount of air moved per breath (normal breathing)
A.
B.
C.
D.
11.  Training can eventually change the structure of the lungs so it could take up more oxygen.
A.
B.
12.  The vagus nerve regulates the heart rate via the sympathetic nervous system
A.
B.
13.  During maximal exercise, 80 - 85% of blood is distributed to working muscles
A.
B.
14.  Baroreceptors are activated/stimulated when BP is too low
A.
B.
15.  The amount of blood pumped by the heart each minute is known as the _________
A.
B.
C.
D.
16.  The peripheral chemoreceptors are sensitive to increases in PCO2 and decreases in PO2 or pH
A.
B.
17.  The ventricles contract ___ sec after the atria
A.
B.
C.
D.
E.
18.  _________ of elite endurance athletes experience hypoxemia during high intensity exercise (>90% VO2 max)
A.
B.
C.
D.
19.  There are 2 types or Humoral receptors
A.
B.
20.  Shortness of breathing is termed
A.
B.
C.
D.
21.  The intrapleural pressure is lower than atmospheric pressure
A.
B.
22.  During prolonged exercise, cardiac output is decreases
A.
B.
23.  Carbonic anhydrase converts CO2 and water into Bicarbonate
A.
B.
24.  At rest, expiration is passive
A.
B.
25.  VO2 = Cardio Output x VO2 difference; which equation is this?
A.
B.
C.
D.
E.
26.  The primary drive to increase ventilation during exercise in from higher brain centers
A.
B.
27.  In an untrained subject doing incremental exercise, ventilation increases linearly up to 
A.
B.
C.
D.
28.  Hematocrit is a % by volume of packed blood cells after centrifugation
A.
B.
29.  There is new evidence that respiratory muscle fatigue does occur during high intensity exercise (>90% VO2 max)
A.
B.
30.  The typical lung capacity is at
A.
B.
C.
D.
31.  The number of beats per minute is known as the heart rate
A.
B.
32.  __ of CO2 is found in the blood is transported as bicarbonate
A.
B.
C.
D.
33.  When peripheral resistance decreases, blood pressure increases
A.
B.
34.  Beta blocking drugs increase the myocardial oxygen demand
A.
B.
35.  The heart cannot be excited if the sympathetic neurons connecting to it are cut off
A.
B.
36.  What is considered normal blood presssure?
A.
B.
C.
D.
37.  Resting systole of the ventricles is longer than diastole
A.
B.
38.  The QRS complex represents ____________
A.
B.
C.
D.
39.  During the Frank Starling mechanism, increase preload will stretch the sarcomere from _______
A.
B.
C.
D.
40.  During heavy exercise, the heart beats at ___ bpm
A.
B.
C.
D.
41.  The energy for the myocardium is mainly carbohydrates
A.
B.
42.  Venoconstriction is stimulated by the SNS
A.
B.
43.  Ventricular Systole is the first phase of the cardiac cycle
A.
B.
44.  Plasma contains(check all that apply)
A.
B.
C.
D.
45.  At rest, the breathing rhythm is dominated by pacemaker neurons in the 
A.
B.
C.
D.
46.  The heart at rest beats at ____ bpm
A.
B.
C.
D.
47.  Volume of air space that reaches the respiratory zone
A.
B.
C.
D.
48.  The ECG may indicate coronary heart disease
A.
B.
49.  When blood viscosity increases, blood pressure decreases
A.
B.
50.  Hemoglobin has a higher affinity for O2 than myoglobin
A.
B.
51.  The vital capacity is 
A.
B.
C.
D.
52.  Carbon dioxide that is bound to hemoglobin is called carbaminohemoglobin
A.
B.
53.  The myocardium receives blood from the arota
A.
B.
54.  The systemic circulation begins at the left side of the heart
A.
B.
55.  Systolic pressure provides an indication of peripheral resistance
A.
B.
56.  Pulse pressure is the difference between systolic and diastolic pressure
A.
B.
57.  At 150 - 200 beats per min, approx how long does it take to fill the heart
A.
B.
C.
D.
58.  Resistance depends on 
A.
B.
C.
D.
59.  Arterial PO2 and PCO2 are maintained relatively constant during a sub maximal exercise
A.
B.
60.  The amount of air moved in and out of the lungs per min
A.
B.
C.
D.
61.  During prolonged exercise, the cardiac output is maintained due to a decrease in stroke volume and an increase in HR.
A.
B.
62.  The atria relaxes during ventricular systole
A.
B.
63.  Ventilation control during exercise is fine tuned by ____________
A.
B.
C.
D.
64.  An increase in blood pressure results in
A.
B.
C.
D.
65.  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.
66.  Long term regulation by the mean arterial blood pressure is influenced by
A.
B.
C.
D.
67.  The cardiac cycle has 2 phases
A.
B.
68.  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.
69.  When HCO3- diffuses out of the RBC's into plasma
A.
B.
C.
D.
70.  When the diaphragm contracts, the lungs __________
A.
B.
C.
D.
71.  The diaphragm is innervated by somatic motor neurons
A.
B.
72.  Nitric Oxide is produced in the mesothelium 
A.
B.
73.  At rest, ____ of blood is distributed to to muscles
A.
B.
C.
D.
74.  Increased HR is due to an increase in cardiac output 
A.
B.
75.  Contraction of the heart depends on electrical stimulation of the _________
A.
B.
C.
D.
76.  The ______ represents atrial depolarization 
A.
B.
C.
D.
77.  Hypertension can cause(check all that apply)
A.
B.
C.
D.
78.  A rough index of workload on the heart is also known as
A.
B.
C.
D.
79.  Max heart rate is found by subtracting ones age from 230
A.
B.
80.  During exercise, the preBotzinger Complex interacts with _________ along with two additional regulatory centers in the pons to regulate breathing
A.
B.
C.
D.
81.  Receptors that are sensitive to an increase in PCO2 exist.
A.
B.
C.
82.  Low partial pressure in the tissues increases the the chance of O2 release to tissues by Hb
A.
B.
83.  In regards to peripheral chemoreceptors 
A.
B.
C.
84.  How much % of CO2 is dissolved in the plasma
A.
B.
C.
D.
85.  The inflection point where VE increases exponentially is known as the respiratory threshold 
A.
B.
86.  Sedentary individuals typically have a resting SV of 
A.
B.
C.
D.
87.  The average cardiac output is 6 L/m
A.
B.
88.  Strength of ventricular contraction is enhanced by acetylcoline
A.
B.
89.  During isovolumetric relaxation
A.
B.
C.
D.
E.
90.  Central chemoreceptors are located in the___________
A.
B.
C.
D.
91.  The __________ lines the thoracic wall
A.
B.
C.
D.
92.  Cardiac output and total vascular resistance influence mean arterial pressure
A.
B.
93.  One should stop exercise if their exercise induced ST segment is greater than 1 mm
A.
B.
94.  The _________ consists of autorhythmic cells
A.
B.
C.
D.
95.  Amount of blood ejected in each beat is known as the _______
A.
B.
C.
D.
96.  Random movement of molecules from an area of high concentration to an are of lower concentration is known as osmosis
A.
B.
97.  HCO3- is a strong acid
A.
B.
98.  Current evidence suggests that the normal rhythm of breathing is generated by the interaction between _____ separate respirator rhythm centers located in the medulla oblongata and the pons.
A.
B.
C.
D.
99.  Blood flow is inversely proportional to resistance
A.
B.
100.  During isovolumetric contraction (check all that apply)
A.
B.
C.
D.
101.  The typical value for the tidal volume is 
A.
B.
C.
D.
102.  _______ promotes smooth muscle relaxation
A.
B.
C.
D.
103.  The O2 content of blood (100% Hb saturation) for females is typically
A.
B.
C.
D.
104.  Arteries in the coronary circulation originate 
A.
B.
C.
D.
105.  Airway collapse; air is trapped in the lungs
A.
B.
C.
D.
106.  Beta blocking drugs increase heart rate
A.
B.
107.  Each gram of Hb can transport ____
A.
B.
C.
D.
108.  Decreased pH increases the Hb-O2 affinity thus resulting in a rightward shift of the curve
A.
B.
109.  Specialized cells located in the aortic and carotid bodies
A.
B.
C.
D.
110.  The alveolar ventilation + dead space ventilation = pulmonary ventilation
A.
B.
111.  During prolonged submaximal exercise in a hot/humid environment, ventilation tends to shift downward
A.
B.
112.  During incremental exercise (check all that apply)
A.
B.
C.
D.
113.  The myocardium is mainly aerobic
A.
B.
114.  Atherosclerosis is fatty plaque that narrows the aorta
A.
B.
115.  Hydrogen binds to Hb to prevent acidity
A.
B.
116.  At the onset of exercise, parasympathetic nerves fire thus increasing the HR 
A.
B.
117.  Systole during heavy exercise is longer than diastole during heavy exericse
A.
B.
118.  Cardiac muscle tissue is also known as endocardium
A.
B.
119.  Plasma is the portion of  blood that repairs injuries
A.
B.
120.  Excessive mucus blocked in the airways
A.
B.
C.
D.
121.  When heart rate increase, blood pressure increases
A.
B.
122.  Function of this later of the heart serves as a lubricative outer covering
A.
B.
C.
D.
123.  Receptors that are sensitive to force and speed of muscular movement
A.
B.
C.
D.
124.  Receptors that are sensitive to change in arterial blood pressure.
A.
B.
C.
D.
125.  Which formula is correct in calculating the Mean Arterial Pressure
A.
B.
C.
D.
126.  Endurance athletes typically have a stroke volume of 160 - 200 ml during exercise
A.
B.
127.  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.
128.  The pulmonary circuit
A.
B.
C.
D.
129.  Which zone warms and humidifies the air?
A.
B.
C.
130.  Current eveidence suggests that respiratory muscles fatigue at prolonged exercise lasting more than
A.
B.
C.
D.
131.  Receptors that are sensitive to muscle metabolites
A.
B.
C.
D.
132.  When standing, most of the blood goes to the apex of the lung
A.
B.
133.  Oxygen demand by muscles during exercise is 10 - 15x greater than at rest.
A.
B.
134.  Ventricular diastole is when the ventricles are relaxed/relaxing
A.
B.
135.  The Ocontent of blood (100% Hb saturation) for males is typically
A.
B.
C.
D.
136.  During heavy or submaximal exercise, a linear rise in ventilation is due to _________(check all that apply)
A.
B.
C.
D.
E.
137.  Which of the following causes a rightward shift of the dissociation curve(check all that apply)
A.
B.
C.
D.
138.  The systemic circulation has lower pressure than the pulmonary circulation 
A.
B.
139.  Deoxyhemoglobin is simply hemoglobin carrying carbon dioxide 
A.
B.
140.  A T wave inversion is an indicator of ischemia
A.
B.
141.  The respiratory control center uses only negative feedback to achieve tight control
A.
B.
142.  What is atmospheric pressure at rest?
A.
B.
C.
D.
143.  An decrease in blood pressure results in an increase in sympathetic nervous system activity
A.
B.
144.  Which is the current formula for Air Flow?
A.
B.
C.
D.
145.  Vasoconstriction to visceral organs and inactive tissues are due to the SNS
A.
B.
146.  Which vessels create the most resistance
A.
B.
C.
D.
147.  An ejection fraction of less than ___ indicates myocardial contraction
A.
B.
C.
D.
148.  Which part of the brain is is the respiratory control center?
A.
B.
C.
D.
149.  The central chemoreceptors are sensitive to increases in ______ and decreases in pH
A.
B.
C.
D.
150.  As the VO2 max increase the double product decreases
A.
B.
151.  Over __ of the O2 transported in blood is chemically bonded with hemoglobin
A.
B.
C.
D.
152.  Training can lower exercise ventilation 20 - 30% lower at the same submaximal work rate
A.
B.
153.  When blood volume increases, blood pressure increases
A.
B.
154.  After leaving the myocardium, blood from the coronary circulation enters the coronary sinus
A.
B.
155.  At rest, what is the filling time of the heart?
A.
B.
C.
D.
156.  Autorhythmic cells depolarize spontaneously 
A.
B.
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