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Questions and Answers
What type of muscle is the heart composed of?
What type of muscle is the heart composed of?
- Erector pili muscle
- Cardiac muscle (correct)
- Smooth muscle
- Skeletal muscle
How many chambers does the heart have?
How many chambers does the heart have?
- Three
- Five
- Four (correct)
- Two
What are the upper chambers of the heart called?
What are the upper chambers of the heart called?
- Valves
- Atria (correct)
- Ventricles
- Septa
Which side of the heart receives deoxygenated blood?
Which side of the heart receives deoxygenated blood?
Which major artery does the left side of the heart use to pump oxygenated blood to the body?
Which major artery does the left side of the heart use to pump oxygenated blood to the body?
What is it called when blood flows through the heart twice in each circulation?
What is it called when blood flows through the heart twice in each circulation?
Where is deoxygenated blood taken to pick up oxygen?
Where is deoxygenated blood taken to pick up oxygen?
Which vessel transports deoxygenated blood to the lungs?
Which vessel transports deoxygenated blood to the lungs?
Which chamber receives oxygenated blood from the lungs?
Which chamber receives oxygenated blood from the lungs?
Which chamber is the most muscular and pumps blood to the rest of the body?
Which chamber is the most muscular and pumps blood to the rest of the body?
Flashcards
What is the heart?
What is the heart?
Muscular organ that contracts and relaxes to pump blood.
Cardiac Muscle
Cardiac Muscle
Specialized muscle tissue forming the heart walls.
Atria
Atria
The upper chambers of the heart that receive blood.
Ventricles
Ventricles
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Right side of heart
Right side of heart
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Left side of heart
Left side of heart
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Double Circulation
Double Circulation
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Pulmonary Artery
Pulmonary Artery
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Pulmonary Vein
Pulmonary Vein
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Left Ventricle
Left Ventricle
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Study Notes
- The heart is a muscular organ that continually contracts and relaxes to pump blood throughout the body.
- The heart is composed of cardiac muscle.
- The heart consists of four chambers.
Heart Chambers
- The upper chambers are called the atria.
- The lower chambers are called the ventricles.
Blood Flow
- The right side of the heart receives deoxygenated blood from the vena cavae.
- The left side of the heart pumps oxygenated blood via the aorta to the rest of the body and via the carotid artery to the head.
- Blood flows through the heart twice in one circulation, giving humans a double circulation.
- Deoxygenated blood is transported to the lungs via the pulmonary artery.
- In the lungs, blood picks up oxygen and is transported back to the heart via the pulmonary vein.
- The left atrium receives oxygenated blood while the left ventricle pumps oxygenated blood to the aorta.
- The left ventricle is the most muscular chamber as it pumps blood to the rest of the body.
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