6058111
Description
Quiz by Chris Mulryan, updated more than 1 year ago
|
|
Created by Chris Mulryan
over 7 years ago
|
|
Question 1
Question
Angiotensin One has which one of the following effects on blood vessels?
Answer
-
Produces vasoconstriction
-
Reduces permeability
-
Increases permeability
-
Angiotensin one is an inactive precursor chemical
-
Produces vasodilatation
Question 2
Question
Papillary muscles serve which one of the following functions in the heart?
Answer
-
Direct blood flow towards the out flow tract during systole
-
Assist in keeping the lower pressured vessels patent in the heart by aposing the affect of the higher pressed atrial supply
-
Assist with expansion of the heart following systole
-
Anchor the chordae tendineae and assist in keeping the atrio ventricular valves closed during ventricular systole
-
Anchor the chordae tendineae and assist in keeping the aortic and pulmonary valves closed during ventricular systole
Question 3
Question
Which one of the following describes the components needed for effective perfusion?
Answer
-
Cardiac pump, cardiac output, heart rate
-
Cardiac pump and extra vascular muscle pump
-
Stroke volume x heart rate
-
Vascular resistance & blood volume
-
Cardiac pump, blood volume, systemic vascular resistance
Question 4
Question
With regard to the SA node, which one of following is true?
Answer
-
It is made of cardiac myocytes
-
It has automaticity at a rate of 200 beats per min
-
In health it is the only electrical connection between the atria and the ventricles
-
It is the natural pace maker of the heart
-
It is the escape pacemaker of the heart
Question 5
Question
Which one of the following coronary vessels supplies the anterior wall of the heart?
Answer
-
The circumflex
-
The left intraventrcular
-
Right coronary artery
-
Left main coronary artery
-
The coronary sinus
Question 6
Question
Which one of the following best describes the coronary ostia?
Answer
-
Is the physiological narrowing in the coronary vessel that ensures a low pressure distal to the ostia so that coronary flow is maintained
-
The coronary ostia is the opening to the right atrium off the vena cava
-
It is the opening in the aorta which supplies oxygenated blood to the coronary vessels
-
It is the point in the coronary circulation where the left coronary artery divides into the left anterior descending and the circumflex artery
-
It is the connection between the arterial and venous systems in the coronary vasculature
Question 7
Question
The aortic valve is designed to prevent flow of blood in which one of the following situations?
Answer
-
From the right atrium into the vena cava during diastole
-
The from the left ventricle into the left atrium during systole
-
From the right atrium into the vena cava during systole
-
From the aorta into the left ventricle during diastole
-
From the right ventricle into the right atrium during systole
Want to create your own Quizzes for free with GoConqr? Learn more.