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