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Questions and Answers
What is the Circulatory System also known as?
What is the Circulatory System also known as?
The internal transport system.
Which of the following are functions of the Circulatory System? (Select all that apply)
Which of the following are functions of the Circulatory System? (Select all that apply)
What type of blood vessels carry blood away from the heart?
What type of blood vessels carry blood away from the heart?
Arteries
What is the main function of plasma in the blood?
What is the main function of plasma in the blood?
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Red blood cells carry carbon dioxide from the tissues to the lungs.
Red blood cells carry carbon dioxide from the tissues to the lungs.
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What protein found in red blood cells is responsible for carrying oxygen?
What protein found in red blood cells is responsible for carrying oxygen?
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How many chambers does the heart have?
How many chambers does the heart have?
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The right atrium receives blood that is ______ from the body.
The right atrium receives blood that is ______ from the body.
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Match the blood components with their functions:
Match the blood components with their functions:
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What are the main components of the Circulatory System?
What are the main components of the Circulatory System?
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Which of the following is NOT a function of the Circulatory System?
Which of the following is NOT a function of the Circulatory System?
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The blood in the Circulatory System surges back and forth.
The blood in the Circulatory System surges back and forth.
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The main liquid component of blood is called _____
The main liquid component of blood is called _____
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Which type of blood vessel carries blood away from the heart?
Which type of blood vessel carries blood away from the heart?
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What are the two types of blood cells mentioned?
What are the two types of blood cells mentioned?
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Match the following components of blood with their functions:
Match the following components of blood with their functions:
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What role does hemoglobin play in red blood cells?
What role does hemoglobin play in red blood cells?
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How many chambers does the heart have?
How many chambers does the heart have?
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The largest artery in the body is the _____
The largest artery in the body is the _____
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What is the main purpose of the heart?
What is the main purpose of the heart?
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Study Notes
Overview of the Circulatory System
- Internal transport system comprised of the cardiovascular and lymphatic systems.
- Transports nutrients and oxygen to cells, and collects wastes for excretion.
- Maintains fluid balance and regulates body temperature.
- Acts as a defense mechanism against harmful bacteria and diseases.
Blood Circulation
- Blood circulates in a definite path, established by William Harvey, preventing backflow.
Blood Vessels
- Three main types:
- Arteries: Carry blood away from the heart.
- Veins: Transport blood towards the heart.
- Capillaries: Facilitate exchange of water and chemicals between blood and tissues.
Blood Composition
-
Blood Cells:
-
Red Blood Cells (Erythrocytes):
- Transport oxygen to tissues.
- Red color due to hemoglobin, a protein rich in iron.
- Produced in bone marrow.
-
White Blood Cells (Leukocytes):
- Function in fighting infections.
- Larger than RBCs but fewer in number; formed in bone marrow and lymph vessels.
-
Platelets (Thrombocytes):
- Involved in blood clotting.
- Small disc-shaped cells; low platelet count can result in excessive bleeding.
-
-
Plasma:
- Liquid component making up about 55% of blood, consisting of roughly 92% water.
- Carries nutrients, hormones, and proteins throughout the body.
Heart Structure and Function
- Muscular Organ: Pumps blood throughout the blood vessels.
- Components include:
- Blood Vessels: Conduct and direct blood flow.
- Chambers: Four chambers (two atria, two ventricles) that contract to pump blood.
- Valves: Prevent backflow ensuring unidirectional blood flow.
Chambers of the Heart
- Right Atrium: Receives oxygen-poor blood from the body.
- Right Ventricle: Pumps oxygen-poor blood to the lungs.
- Left Atrium: Receives oxygen-rich blood from the lungs.
- Left Ventricle: Pumps oxygen-rich blood to the body.
Major Blood Vessels of the Heart
- Superior Vena Cava: Brings deoxygenated blood from the upper body to the right atrium.
- Inferior Vena Cava: Delivers deoxygenated blood from the lower body to the right atrium.
- Pulmonary Arteries: Carry deoxygenated blood to the lungs for oxygenation.
- Aorta: Largest artery, distributes oxygenated blood from the left ventricle to the body.
Valves of the Heart
- Flaps that prevent backflow of blood, ensuring continuous circulation in one direction.
Overview of the Circulatory System
- Internal transport system comprised of the cardiovascular and lymphatic systems.
- Transports nutrients and oxygen to cells, and collects wastes for excretion.
- Maintains fluid balance and regulates body temperature.
- Acts as a defense mechanism against harmful bacteria and diseases.
Blood Circulation
- Blood circulates in a definite path, established by William Harvey, preventing backflow.
Blood Vessels
- Three main types:
- Arteries: Carry blood away from the heart.
- Veins: Transport blood towards the heart.
- Capillaries: Facilitate exchange of water and chemicals between blood and tissues.
Blood Composition
-
Blood Cells:
-
Red Blood Cells (Erythrocytes):
- Transport oxygen to tissues.
- Red color due to hemoglobin, a protein rich in iron.
- Produced in bone marrow.
-
White Blood Cells (Leukocytes):
- Function in fighting infections.
- Larger than RBCs but fewer in number; formed in bone marrow and lymph vessels.
-
Platelets (Thrombocytes):
- Involved in blood clotting.
- Small disc-shaped cells; low platelet count can result in excessive bleeding.
-
-
Plasma:
- Liquid component making up about 55% of blood, consisting of roughly 92% water.
- Carries nutrients, hormones, and proteins throughout the body.
Heart Structure and Function
- Muscular Organ: Pumps blood throughout the blood vessels.
- Components include:
- Blood Vessels: Conduct and direct blood flow.
- Chambers: Four chambers (two atria, two ventricles) that contract to pump blood.
- Valves: Prevent backflow ensuring unidirectional blood flow.
Chambers of the Heart
- Right Atrium: Receives oxygen-poor blood from the body.
- Right Ventricle: Pumps oxygen-poor blood to the lungs.
- Left Atrium: Receives oxygen-rich blood from the lungs.
- Left Ventricle: Pumps oxygen-rich blood to the body.
Major Blood Vessels of the Heart
- Superior Vena Cava: Brings deoxygenated blood from the upper body to the right atrium.
- Inferior Vena Cava: Delivers deoxygenated blood from the lower body to the right atrium.
- Pulmonary Arteries: Carry deoxygenated blood to the lungs for oxygenation.
- Aorta: Largest artery, distributes oxygenated blood from the left ventricle to the body.
Valves of the Heart
- Flaps that prevent backflow of blood, ensuring continuous circulation in one direction.
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Description
Test your knowledge of the circulatory system, also known as the internal transport system. This quiz covers its components, functions, and importance to human health, including the roles of the cardiovascular and lymphatic systems.
