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Questions and Answers
What is the primary function of the cardiovascular system?
What is the primary function of the cardiovascular system?
Which type of blood vessel is responsible for carrying oxygenated blood away from the heart?
Which type of blood vessel is responsible for carrying oxygenated blood away from the heart?
What is the term for the sequence of events that occurs in the heart during one heartbeat?
What is the term for the sequence of events that occurs in the heart during one heartbeat?
What is the term for high blood pressure, which can increase the risk of cardiovascular disease?
What is the term for high blood pressure, which can increase the risk of cardiovascular disease?
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Which type of artery is able to stretch and recoil with each heartbeat, allowing for efficient blood flow?
Which type of artery is able to stretch and recoil with each heartbeat, allowing for efficient blood flow?
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What is a risk factor for cardiovascular disease?
What is a risk factor for cardiovascular disease?
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What is the term for the flow of blood from the heart to the rest of the body to deliver oxygen and nutrients?
What is the term for the flow of blood from the heart to the rest of the body to deliver oxygen and nutrients?
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What is the term for the range of conditions that affect the heart and blood vessels?
What is the term for the range of conditions that affect the heart and blood vessels?
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Study Notes
Overview
- The cardiovascular system, also known as the circulatory system, is a network of organs and vessels that transport blood throughout the body.
- Its primary function is to deliver oxygen and nutrients to cells and remove waste products.
Components
- Heart: a muscular organ that pumps blood throughout the body.
- Arteries: blood vessels that carry oxygenated blood away from the heart.
- Veins: blood vessels that carry deoxygenated blood back to the heart.
- Capillaries: tiny blood vessels where oxygen and nutrients are exchanged with cells.
- Blood: a liquid tissue that transports oxygen, nutrients, and waste products.
Blood Flow
- Pulmonary circulation: blood flow from the heart to the lungs to pick up oxygen and release carbon dioxide.
- Systemic circulation: blood flow from the heart to the rest of the body to deliver oxygen and nutrients.
- Cardiac cycle: the sequence of events that occurs in the heart during one heartbeat.
Blood Pressure
- Systolic pressure: the highest pressure in the arteries, occurring when the heart beats.
- Diastolic pressure: the lowest pressure in the arteries, occurring between beats.
- Hypertension: high blood pressure, which can increase the risk of cardiovascular disease.
Blood Vessels
- Elastic arteries: able to stretch and recoil with each heartbeat, allowing for efficient blood flow.
- Muscular arteries: able to constrict and dilate to regulate blood pressure.
- Veins: have one-way valves to prevent blood from flowing backwards.
Cardiovascular Health
- Risk factors: high blood pressure, high cholesterol, smoking, obesity, and lack of exercise.
- Cardiovascular disease: a range of conditions, including heart attacks, strokes, and atherosclerosis, that affect the heart and blood vessels.
- Prevention: maintaining a healthy lifestyle, including a balanced diet and regular exercise, can reduce the risk of cardiovascular disease.
Cardiovascular System
- The cardiovascular system is a network of organs and vessels that transport blood throughout the body, delivering oxygen and nutrients to cells and removing waste products.
Components of the Cardiovascular System
- The heart is a muscular organ that pumps blood throughout the body.
- Arteries are blood vessels that carry oxygenated blood away from the heart.
- Veins are blood vessels that carry deoxygenated blood back to the heart.
- Capillaries are tiny blood vessels where oxygen and nutrients are exchanged with cells.
- Blood is a liquid tissue that transports oxygen, nutrients, and waste products.
Blood Flow
- Pulmonary circulation is the flow of blood from the heart to the lungs to pick up oxygen and release carbon dioxide.
- Systemic circulation is the flow of blood from the heart to the rest of the body to deliver oxygen and nutrients.
- The cardiac cycle is the sequence of events that occurs in the heart during one heartbeat.
Blood Pressure
- Systolic pressure is the highest pressure in the arteries, occurring when the heart beats.
- Diastolic pressure is the lowest pressure in the arteries, occurring between beats.
- Hypertension is high blood pressure, which can increase the risk of cardiovascular disease.
Blood Vessels
- Elastic arteries are able to stretch and recoil with each heartbeat, allowing for efficient blood flow.
- Muscular arteries are able to constrict and dilate to regulate blood pressure.
- Veins have one-way valves to prevent blood from flowing backwards.
Cardiovascular Health
- Risk factors for cardiovascular disease include high blood pressure, high cholesterol, smoking, obesity, and lack of exercise.
- Cardiovascular disease is a range of conditions, including heart attacks, strokes, and atherosclerosis, that affect the heart and blood vessels.
- Prevention measures include maintaining a healthy lifestyle, including a balanced diet and regular exercise, to reduce the risk of cardiovascular disease.
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Description
Learn about the cardiovascular system, its components, and functions, including the heart, arteries, and veins.
