EXSS 276 Exam 3 Questions with
100% Correct Answers
Which of the following factors may act to decrease blood pressure? - Answer-Increased
parasympathetic nervous system stimulation, increased ANP secretion, vasodilation of
blood vessels
Compared to other blood vessel types, the capillaries have the _______ aggregate
cross-sectional area. Therefore, the velocity of blood flow through the capillaries is
_______. - Answer-largest, low
As an arteriole undergoes vasoconstriction, its resistance to blood flow increases
exponentially. (T/F) - Answer-True
Which of the following hormones, when increased, will cause vasoconstriction? -
Answer-ADH and Angiotensin II
The method of capillary fluid exchange that is most important in regulating blood volume
and interstitial fluid volume is: - Answer-Bulk flow
In the augmented electrocardiogram "leads", the cardiac cycle electrical tracing typically
looks upside down due to the perspective of the placement of the sensing electrode.
(T/F) - Answer-True
If end diastolic volume is 150 mL and end systolic volume is 70 mL, and the heart rate is
60 beats per minute, then stroke volume and cardiac output equal? - Answer-80 mL, 4.8
L
Exposure to hypoxic air results in blood hypoxemia which if a persistence exposure or
condition results in increased erythropoiesis. (T/F) - Answer-True
Which of the following hormones when increased in the circulation could result in a
hematocrit increasing from 42% to 45%. - Answer-Testosterone
The cardiac output of an athlete during maximal exercise could exceed 30 Liters of
blood per minute. (T/F) - Answer-True
A resistance-strength trained athlete may display an "Afterload" left ventricular
hypertrophy. (T/F) - Answer-True
100% Correct Answers
Which of the following factors may act to decrease blood pressure? - Answer-Increased
parasympathetic nervous system stimulation, increased ANP secretion, vasodilation of
blood vessels
Compared to other blood vessel types, the capillaries have the _______ aggregate
cross-sectional area. Therefore, the velocity of blood flow through the capillaries is
_______. - Answer-largest, low
As an arteriole undergoes vasoconstriction, its resistance to blood flow increases
exponentially. (T/F) - Answer-True
Which of the following hormones, when increased, will cause vasoconstriction? -
Answer-ADH and Angiotensin II
The method of capillary fluid exchange that is most important in regulating blood volume
and interstitial fluid volume is: - Answer-Bulk flow
In the augmented electrocardiogram "leads", the cardiac cycle electrical tracing typically
looks upside down due to the perspective of the placement of the sensing electrode.
(T/F) - Answer-True
If end diastolic volume is 150 mL and end systolic volume is 70 mL, and the heart rate is
60 beats per minute, then stroke volume and cardiac output equal? - Answer-80 mL, 4.8
L
Exposure to hypoxic air results in blood hypoxemia which if a persistence exposure or
condition results in increased erythropoiesis. (T/F) - Answer-True
Which of the following hormones when increased in the circulation could result in a
hematocrit increasing from 42% to 45%. - Answer-Testosterone
The cardiac output of an athlete during maximal exercise could exceed 30 Liters of
blood per minute. (T/F) - Answer-True
A resistance-strength trained athlete may display an "Afterload" left ventricular
hypertrophy. (T/F) - Answer-True
