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Questions and Answers
What term is used to describe the resistance offered by the systemic circulation?
What term is used to describe the resistance offered by the systemic circulation?
- Arterial resistance
- Systemic vascular resistance (correct)
- Pulmonary vascular resistance
- Total circulatory resistance
How does vasoconstriction affect vascular resistance?
How does vasoconstriction affect vascular resistance?
- It decreases resistance.
- It decreases blood flow.
- It increases resistance. (correct)
- It has no effect on resistance.
Which of the following best describes the relationship between blood flow, cardiac output, and vascular resistance?
Which of the following best describes the relationship between blood flow, cardiac output, and vascular resistance?
- Blood flow is directly related to vascular resistance.
- Cardiac output is inversely related to vascular resistance. (correct)
- Vascular resistance increases with blood flow.
- Cardiac output is independent of blood pressure.
What effect does an increase in systemic vascular resistance have on cardiac output?
What effect does an increase in systemic vascular resistance have on cardiac output?
What is the main function of the blood circulatory system?
What is the main function of the blood circulatory system?
Which component of blood is primarily responsible for carrying oxygen?
Which component of blood is primarily responsible for carrying oxygen?
Which chamber of the heart receives deoxygenated blood loaded with carbon dioxide?
Which chamber of the heart receives deoxygenated blood loaded with carbon dioxide?
What happens during vasodilation in relation to vascular resistance?
What happens during vasodilation in relation to vascular resistance?
What is the most serious complication that can arise from deep vein thrombosis (DVT)?
What is the most serious complication that can arise from deep vein thrombosis (DVT)?
Which valve connects the left atrium and left ventricle of the heart?
Which valve connects the left atrium and left ventricle of the heart?
What process allows oxygen-poor blood to flow from the right ventricle to the lungs?
What process allows oxygen-poor blood to flow from the right ventricle to the lungs?
Which veins carry oxygen-rich blood from the lungs to the left atrium?
Which veins carry oxygen-rich blood from the lungs to the left atrium?
What is a primary risk factor for atherosclerosis?
What is a primary risk factor for atherosclerosis?
What does venous thromboembolism (VTE) consist of?
What does venous thromboembolism (VTE) consist of?
Which of the following factors does NOT influence stroke volume?
Which of the following factors does NOT influence stroke volume?
Which chamber of the heart receives deoxygenated blood from the body?
Which chamber of the heart receives deoxygenated blood from the body?
Which condition involves the narrowing of arteries due to plaque deposits?
Which condition involves the narrowing of arteries due to plaque deposits?
What is a primary risk factor for developing Atherosclerosis?
What is a primary risk factor for developing Atherosclerosis?
Which of the following describes a condition where veins have problems with their valves?
Which of the following describes a condition where veins have problems with their valves?
What factor primarily influences stroke volume in the heart?
What factor primarily influences stroke volume in the heart?
What is the role of pulmonary circulation in the cardiovascular system?
What is the role of pulmonary circulation in the cardiovascular system?
What characterizes high blood pressure in the circulatory system?
What characterizes high blood pressure in the circulatory system?
What condition occurs due to a weak spot in the wall of an artery?
What condition occurs due to a weak spot in the wall of an artery?
Which veins are responsible for carrying oxygenated blood from the lungs to the heart?
Which veins are responsible for carrying oxygenated blood from the lungs to the heart?
Flashcards
Systemic Vascular Resistance (SVR)
Systemic Vascular Resistance (SVR)
Resistance to blood flow in the systemic circulation.
Pulmonary Vascular Resistance
Pulmonary Vascular Resistance
Resistance to blood flow in the pulmonary circulation.
Vasoconstriction
Vasoconstriction
Narrowing of blood vessels, increasing resistance.
Vasodilation
Vasodilation
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Blood Pressure-Vascular Resistance Relationship
Blood Pressure-Vascular Resistance Relationship
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Circulatory System Function
Circulatory System Function
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Deoxygenated Blood (Right Heart)
Deoxygenated Blood (Right Heart)
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Components of Blood
Components of Blood
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Pulmonary Embolism
Pulmonary Embolism
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Deep Vein Thrombosis
Deep Vein Thrombosis
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Tricuspid Valve
Tricuspid Valve
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Pulmonary Valve
Pulmonary Valve
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Mitral Valve
Mitral Valve
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Aortic Valve
Aortic Valve
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Superior Vena Cava
Superior Vena Cava
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Pulmonary Artery
Pulmonary Artery
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Right Side of the Heart
Right Side of the Heart
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Left Side of the Heart
Left Side of the Heart
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What carries oxygenated blood?
What carries oxygenated blood?
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What carries deoxygenated blood?
What carries deoxygenated blood?
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What are capillaries?
What are capillaries?
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What are valves in veins?
What are valves in veins?
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What is blood pressure?
What is blood pressure?
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What is an aneurysm?
What is an aneurysm?
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Study Notes
Hypotension Symptoms
- Dizziness, lightheadedness, falls, fainting, noticeable heartbeats, confusion, tiredness, nausea
- Blurred vision, unsteadiness
High Heart Rate and Cardiac Output
- Cardiac output is calculated by multiplying heart rate by stroke volume.
- A higher heart rate increases cardiac output.
Deep Vein Thrombosis (DVT) Complications
- Blood clots in veins can break loose and travel through the bloodstream.
- These clots can get stuck in the lungs (pulmonary embolism).
- DVT and pulmonary embolism together are called venous thromboembolism (VTE).
Atherosclerosis and Vessel Narrowing
- Plaque buildup in arteries blocks blood flow.
- Coronary artery disease, carotid artery disease, peripheral artery disease, and kidney disease can result from atherosclerosis.
- Arteriosclerosis (hardening) can lead to kidney failure.
Blood Flow Through the Heart and Lungs
- Oxygen-poor blood enters the right atrium.
- Blood travels through the right ventricle and pulmonary artery to the lungs.
- Oxygenated blood returns to the left atrium.
- Blood flows through the left ventricle and aorta to the rest of the body.
Blood Flow Through the Heart (Detailed)
- Superior and inferior vena cava bring deoxygenated blood to the right atrium.
- Tricuspid valve directs blood to the right ventricle.
- Pulmonary valve allows blood flow to the pulmonary artery and lungs.
- Pulmonary veins carry oxygenated blood to the left atrium.
- Mitral valve directs blood to the left ventricle.
- Aortic valve sends blood through the aorta to the body.
Chronic Arterial Obstructions
- Narrowing or closing of arteries supplying blood to the heart.
- Plaque buildup (atherosclerosis) is a common cause.
- Blockage can limit or stop blood flow to the heart muscle.
- Acute blockage is called a heart attack.
Risk Factors for Obstructive Coronary Artery Disease
- Cholesterol deposition/inflammation of artery walls.
- High blood pressure, high cholesterol, tobacco use, diabetes, family history, obesity, and sedentary lifestyle.
Chronic Venous Insufficiency
- Symptoms: dull aching, cramping or heavy feeling in legs, swelling, pain that worsens when standing, tingling sensation, visible varicose veins
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Description
Test your knowledge on symptoms of hypotension, heart rate, cardiac output, and the complications of deep vein thrombosis. This quiz covers various aspects of atherosclerosis and blood flow through the heart and lungs, highlighting crucial cardiovascular concepts.
