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