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WorksheetsCVT 321 Test 1 Review
Total questions: 35
Worksheet time: 27mins
Blood flows from the pulmonary veins into the
Left atrium
Right atrium
Left ventricle
Right ventricle
Label number 2 on the image
Atrioventricular node
Bundle of HIS
Bundle branch
Sinoatrial node
Label number 4 on the image
Purkinje fibers
Bundle branches
Bundle of HIS
AV Node
What is the function of the Bundle of HIS?
Connects the atrial and the ventricles electrically
Dominant pacemaker of the heart
Spreads impulses to the atria
Slows conduction
What is the function of the SA Node?
Dominant pacemaker of the heart
Directs electrical impulses between AV & SA nodes
Slows conduction
Connects the atria and ventricles electrically
Which of the following splits into two conduction pathways and carries impulese to the interventricular septum at high speeds?
AV Node
SA Node
Bundle Branches
Purkinje system
The Bernoulli Principles states that if velocity increases , pressure
(a)
Which of the following has the most dramatic effect on resistance?
Change in vessel radius
Viscosity
Change in vessel length
Ejection fraction
The term "thrill" is used for blood flow that can be (a)
Turbulent blood flow that can be heard is called a(n)
Bruit
Thrill
Eddy
Parabolic
The outer layer of a blood vessel is called
Tunica adventitia
Tunica intima
Epicardium
Parietal pericardium
The inner layer of a blood vessel is called the
Tunica intima
Tunica adventitia
Parietal pericardium
Epicardium
Where is waste exchanged in the cardiovascular system?
Capillaries
Venules
Veins
Pulmonary arteries
(a) blood travels from the left atrium, through the mitral valve, and into the left ventricle
What is the hydrostatic pressure measured at the level of the heart in a standing patient?
0 mmHg
-30 mmHg
140 mmHg
50 mmHg
During expiration, the diaphragm moves (a) in the chest. This (b) venous return to the heart from the head, arms, and vena cava.
Match the following Reynolds numbers to their description
1,000
Laminar
2,250
Turbulent
1,850
Indeterminate
In the center of a stenosis, velocity (a)
Which of the following principles states that the greater the heart is stretched, the greater the energy released by contraction?
Starlings Law
Bernoulli Principle
Ohm's Law
Reynolds Number
Pressure in the left ventricle increases, and no valves are open during
Isovolumetric contraction
Isovolumic relaxation
Put the following in order from fastest to slowest intrinsic rate
SA Node
AV Node
Purkinje system
An increase in a patient's hematocrit can increase:
blood viscosity
blood pressure
blood through a stenosis
flow rate
The innermost layer of the heart is called the
Endocardium
Epicardium
Tunica intima
Tunica adventitia
The superior chambers of the heart are called the (a) , while the inferior chambers are called the (b)
The pulmonary veins carry _______ blood to the heart
Oxygenated
Deoxygenated
The amount of blood ejected from the ventricle in a single contraction is also known as
Stroke volume
Ejection fraction
Heart rate
Cardiac output
Which of the following defines the relationship between pressure, volume flow, & resistance?
Poiseuilles Equation
Bernoulli Principle
Starlings Law
Ohms Law
The volume of blood pumped through the circulatory system in one minute
Cardiac Output
Ejection fraction
Stroke volume
Heart rate
The stretch that the blood places on the walls of the ventricles when it is maximally filled
Preload
Afterload
the resistance the blood faces as it leaves the ventricle
Afterload
Preload
Stroke volume is determined by afterload, preload, and
Cardiac contractility
Heart rate
Ejection fraction
What is happening in #2 in the image
Aortic valve opens
Mitral valve closes
Aortic valve closes
Mitral valve opens
Blood enters the right atrium via the
Vena cava
Pulmonary veins
Pulmonary arteries
Aorta
Veins have (a) blood flow
If a supine patient's blood pressure is 140 mmHg, the hydrostatic pressure measured at the ankle of that patient is
0 mmHg
140 mmHg
-30 mmHg
50 mmHg
