Podcast
Questions and Answers
Which one of the following is NOT a function of the cardiovascular system?
Which one of the following is NOT a function of the cardiovascular system?
- Hormone production
- Waste product removal
- Transport
- Nutrient absorption (correct)
Which layer of the heart surrounds and protects the heart?
Which layer of the heart surrounds and protects the heart?
- Endocardium
- Myocardium
- Epicardium
- Pericardium (correct)
Which of the following is responsible for pumping blood out of the heart?
Which of the following is responsible for pumping blood out of the heart?
- Left atrium
- Left ventricle (correct)
- Right ventricle
- Right atrium
Which major blood vessels carry deoxygenated blood?
Which major blood vessels carry deoxygenated blood?
Which of the following is NOT a component of the cardiovascular system?
Which of the following is NOT a component of the cardiovascular system?
Flashcards
Not a Cardiovascular Function?
Not a Cardiovascular Function?
Nutrient absorption is not a function of this system; it's the digestive system's role.
Protective Heart Layer
Protective Heart Layer
The pericardium is a double-layered sac that encloses the heart, providing protection and reducing friction.
Blood Pumping Chamber
Blood Pumping Chamber
The left ventricle is the strongest chamber and pumps oxygenated blood to the entire body.
Deoxygenated Vessel
Deoxygenated Vessel
Pulmonary arteries carry deoxygenated blood from the heart to the lungs for oxygenation.
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Not a Cardiovascular Component?
Not a Cardiovascular Component?
The lungs are part of the respiratory system, not the cardiovascular system; the heart, blood, and blood vessels are.
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Cardiovascular System Functions
- Major functions include transportation of oxygen, nutrients, hormones, and waste products.
- Regulation of body temperature, pH levels, and fluid balance.
- Protection against blood loss and infection through immune responses.
Heart Structure
- The outer layer of the heart is known as the pericardium, providing protection and reducing friction.
- The myocardium is the muscular middle layer responsible for contraction and pumping.
Heart Function
- The ventricles, specifically the left ventricle, are responsible for pumping oxygenated blood out of the heart to the body.
- The right ventricle pumps deoxygenated blood to the lungs for oxygenation.
Blood Vessel Types
- Major blood vessels carrying deoxygenated blood include the superior and inferior vena cavae and the pulmonary arteries.
- Systemic circulation involves the aorta carrying oxygen-rich blood away from the heart.
Components of the Cardiovascular System
- Main components include the heart, blood vessels (arteries, veins, capillaries), and blood itself.
- Not included in the cardiovascular system are lymphatic structures or organs such as the spleen.
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