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


to post comments.

Removing ad is a premium feature

Upgrade and get a lot more done!
Take Another Quiz