PNP301 - TEST 3 QUESTIONS AND ANSWERS | WITH COMPLETE SOLUTION!!
MaintainS CO when SV decreases - (ANSWER)increased HR
Causes AV nodes to close - (ANSWER)increased intraventricular pressure
"It is a potential space containing a very small amount of serous fluid." - (ANSWER)pericardial cavity
Which of the following factors greatly improves venous return to the heart during strenuous exercise?
a. Rapid emptying of the right side of the heart
b. Forceful action of the valves in the veins
c. Contraction and relaxation of skeletal muscle
d. Peristalsis in the large veins - (ANSWER)C. contraction & relaxation of Sk. muscle
"signal the cardiovascular control center of changes in systemic blood pressure." -
(ANSWER)Baroreceptors
The normal delay in conduction through the AV node is essential for__________ - (ANSWER)completing
ventricular filling
Which of the following is a result of increased secretion of epinephrine?
a. Increased heart rate and force of contraction
b. Decreased stimulation of the SA node and ventricles
c. Vasoconstriction in skeletal muscles and kidneys
d. Vasodilation of cutaneous blood vessels - (ANSWER)A. increased HR + force of contraction
Which of the following causes increased heart rate?
a. Stimulation of the vagus nerve
b. Increased renin secretion
c. Administration of beta-blocking drugs
d. Stimulation of the sympathetic nervous system - (ANSWER)D. stimulation of the SNS
, PNP301 - TEST 3 QUESTIONS AND ANSWERS | WITH COMPLETE SOLUTION!!
causes the QRS wave on an electrocardiogram (ECG) - (ANSWER)Ventricular DEpolarization
The cardiac reserve is? - (ANSWER)the ability of the heart to increase cardiac output when needed
what is "Preload"? - (ANSWER)volume of venous return
what is "Cardiac output"? - (ANSWER)Volume of blood ejected by a ventricle in one minute
Which of the following is most likely to cause left-sided congestive heart failure?
a. Incompetent tricuspid heart valve
b. Chronic pulmonary disease
c. Infarction in the right atrium
d. Uncontrolled essential hypertension - (ANSWER)D. uncontrolled essential HTN
definition of Congestive heart failure? - (ANSWER)the inability of the heart to pump enough blood to
meet the metabolic demands of the body.
The classic early manifestation(s) of left-sided congestive heart failure is/are ____, whereas the early
indicator(s) of right-sided failure is/are _______.
a. palpitations and periodic chest pain; shortness of breath on exertion
b. swelling of the ankles and abdomen; chest pain
c. shortness of breath on exertion or lying down; swelling of the ankles
d. coughing up frothy sputum; hepatomegaly and splenomegaly - (ANSWER)C. SOB on exertion/lying
down (L); Swelling of ankles (R)
Significant signs of right-sided congestive heart failure include:
a. severe chest pain and tachycardia.
b. edematous feet and legs with hepatomegaly.
MaintainS CO when SV decreases - (ANSWER)increased HR
Causes AV nodes to close - (ANSWER)increased intraventricular pressure
"It is a potential space containing a very small amount of serous fluid." - (ANSWER)pericardial cavity
Which of the following factors greatly improves venous return to the heart during strenuous exercise?
a. Rapid emptying of the right side of the heart
b. Forceful action of the valves in the veins
c. Contraction and relaxation of skeletal muscle
d. Peristalsis in the large veins - (ANSWER)C. contraction & relaxation of Sk. muscle
"signal the cardiovascular control center of changes in systemic blood pressure." -
(ANSWER)Baroreceptors
The normal delay in conduction through the AV node is essential for__________ - (ANSWER)completing
ventricular filling
Which of the following is a result of increased secretion of epinephrine?
a. Increased heart rate and force of contraction
b. Decreased stimulation of the SA node and ventricles
c. Vasoconstriction in skeletal muscles and kidneys
d. Vasodilation of cutaneous blood vessels - (ANSWER)A. increased HR + force of contraction
Which of the following causes increased heart rate?
a. Stimulation of the vagus nerve
b. Increased renin secretion
c. Administration of beta-blocking drugs
d. Stimulation of the sympathetic nervous system - (ANSWER)D. stimulation of the SNS
, PNP301 - TEST 3 QUESTIONS AND ANSWERS | WITH COMPLETE SOLUTION!!
causes the QRS wave on an electrocardiogram (ECG) - (ANSWER)Ventricular DEpolarization
The cardiac reserve is? - (ANSWER)the ability of the heart to increase cardiac output when needed
what is "Preload"? - (ANSWER)volume of venous return
what is "Cardiac output"? - (ANSWER)Volume of blood ejected by a ventricle in one minute
Which of the following is most likely to cause left-sided congestive heart failure?
a. Incompetent tricuspid heart valve
b. Chronic pulmonary disease
c. Infarction in the right atrium
d. Uncontrolled essential hypertension - (ANSWER)D. uncontrolled essential HTN
definition of Congestive heart failure? - (ANSWER)the inability of the heart to pump enough blood to
meet the metabolic demands of the body.
The classic early manifestation(s) of left-sided congestive heart failure is/are ____, whereas the early
indicator(s) of right-sided failure is/are _______.
a. palpitations and periodic chest pain; shortness of breath on exertion
b. swelling of the ankles and abdomen; chest pain
c. shortness of breath on exertion or lying down; swelling of the ankles
d. coughing up frothy sputum; hepatomegaly and splenomegaly - (ANSWER)C. SOB on exertion/lying
down (L); Swelling of ankles (R)
Significant signs of right-sided congestive heart failure include:
a. severe chest pain and tachycardia.
b. edematous feet and legs with hepatomegaly.
