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Describe the role of the heart valves.
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The valves act like one-way doors to ensure blood flows in the correct direction.
What is the function of the pulmonary artery?
The pulmonary artery carries deoxygenated blood from the heart to the lungs.
List the vessels that carry blood to the heart and specify whether they carry oxygenated or deoxygenated blood.
Superior Vena Cava and Inferior Vena Cava carry deoxygenated blood; Pulmonary Vein carries oxygenated blood.
How does oxygenated blood return to the heart from the lungs and which chamber does it enter?
Oxygenated blood returns via the pulmonary veins and enters the left atrium.
Name the four chambers of the heart.
Right Atrium, Left Atrium, Right Ventricle, Left Ventricle
Which valves are located on the right side of the heart?
Tricuspid Valve and Pulmonary Valve
Differentiate between the functions of the superior vena cava and the inferior vena cava.
The superior vena cava delivers deoxygenated blood from the head, neck, arms, and chest; the inferior vena cava delivers deoxygenated blood from the abdomen, legs, and feet.
What happens to the blood when the left ventricle contracts?
Blood is pumped through the aortic valve into the aorta, and then distributed around the body.
What is the sequence of blood flow through the chambers and valves of the heart starting from the left atrium?
1. Left atrium -> 2. Mitral valve -> 3. Left ventricle -> 4. Aortic valve -> 5. Aorta
What is the main function of the aorta?
The aorta carries oxygenated blood from the heart to the rest of the body.
Which chamber of the heart receives deoxygenated blood from the body?
Right Atrium
What key function do veins and arteries serve in the circulatory system?
Veins carry blood to the heart, and arteries carry blood away from the heart.
Which two structures are involved in pumping deoxygenated blood towards the lungs?
Right Ventricle and Pulmonary Artery
Trace the path of deoxygenated blood through the heart starting from the right atrium.
1. Right atrium -> 2. Tricuspid valve -> 3. Right ventricle -> 4. Pulmonary valve -> 5. Pulmonary artery -> 6. Lungs
Explain the function of the mitral valve in the circulatory process.
The mitral valve ensures that blood flows from the left atrium to the left ventricle without backflow.
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