NU110 Practice exam Questions with complete
Answers
What contributes to short-term regulation of blood pressure by increasing diameter?
Vasodilation mediated by the RAAS
Vasodilation mediated by the release of ADH
Vasodilation mediated by the sympathetic nervous system
Vasodilation mediated by the release of aldosterone
Vasodilation mediated by the sympathetic nervous system
What part of the cardiac conduction system initiates a heartbeat?
The AV node
The SA node
Bundle of His
Purkinje fibers
The SA node
What is ventilation?
The process of gas exchange between the bloodstream and tissues
The process of gas exchange between the alveoli and pulmonary capillaries
The mechanical movement of air into and out of the lungs
The transport of oxygen and co2 by the bloodstream
The mechanical movement of air into and out of the lungs
What does the term "myocardium" refer to ?
The inner lining of blood vessels
The outer protective covering of the heart
The muscular layer of the heart
The fluid-filled cavity within the heart
The muscular layer of the heart
, What is the name of the valve labeled "C" ?
Pulmonary valve
Tricuspid valve
Aortic valve
Mitral valve
Aortic valve
What effects does the parasympathetic nervous system have on the heart?
Increase heart rate and force of contraction
Decrease heart rate and force of contraction
Increase heart rate and dilate blood vessels
Decrease heart rate and constrict blood vessels
Decrease heart rate and force of contraction
What is the function of the left ventricle?
Pumping oxygenated blood to the lungs
Pumping deoxygenated blood to the body tissues
Pumping oxygenated blood to the body tissues
Pumping deoxygenated blood to the lungs
Pumping oxygenated blood to the body tissues
How does hyperventilation contribute to alkalosis?
By decreasing carbon dioxide levels
By increasing blood carbon dioxide levels
By decreasing blood oxygen levels
By increasing blood oxygen levels
By decreasing blood carbon dioxide levels
Define cardiac output:
The amount of blood ejected by the heart in one minute
Answers
What contributes to short-term regulation of blood pressure by increasing diameter?
Vasodilation mediated by the RAAS
Vasodilation mediated by the release of ADH
Vasodilation mediated by the sympathetic nervous system
Vasodilation mediated by the release of aldosterone
Vasodilation mediated by the sympathetic nervous system
What part of the cardiac conduction system initiates a heartbeat?
The AV node
The SA node
Bundle of His
Purkinje fibers
The SA node
What is ventilation?
The process of gas exchange between the bloodstream and tissues
The process of gas exchange between the alveoli and pulmonary capillaries
The mechanical movement of air into and out of the lungs
The transport of oxygen and co2 by the bloodstream
The mechanical movement of air into and out of the lungs
What does the term "myocardium" refer to ?
The inner lining of blood vessels
The outer protective covering of the heart
The muscular layer of the heart
The fluid-filled cavity within the heart
The muscular layer of the heart
, What is the name of the valve labeled "C" ?
Pulmonary valve
Tricuspid valve
Aortic valve
Mitral valve
Aortic valve
What effects does the parasympathetic nervous system have on the heart?
Increase heart rate and force of contraction
Decrease heart rate and force of contraction
Increase heart rate and dilate blood vessels
Decrease heart rate and constrict blood vessels
Decrease heart rate and force of contraction
What is the function of the left ventricle?
Pumping oxygenated blood to the lungs
Pumping deoxygenated blood to the body tissues
Pumping oxygenated blood to the body tissues
Pumping deoxygenated blood to the lungs
Pumping oxygenated blood to the body tissues
How does hyperventilation contribute to alkalosis?
By decreasing carbon dioxide levels
By increasing blood carbon dioxide levels
By decreasing blood oxygen levels
By increasing blood oxygen levels
By decreasing blood carbon dioxide levels
Define cardiac output:
The amount of blood ejected by the heart in one minute
