Grade 12 Biology: Heart Structure
A Grade 12 Biology worksheet focusing on the structure and function of the human heart, including chambers, valves, and major blood vessels.
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Grade 12 Biology: Heart Structure
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Read each question carefully and provide detailed answers. Refer to the provided diagram if necessary.
Study the diagram of the human heart below and answer the questions that follow.
1. Label the four chambers of the heart on the diagram.
2. Identify the major blood vessels entering and leaving the heart.
3. Locate and label the four main valves within the heart.
4. Which chamber of the heart receives oxygenated blood from the lungs?
Right atrium
Left atrium
Right ventricle
Left ventricle
5. The bicuspid valve is also known as the:
Tricuspid valve
Pulmonary valve
Aortic valve
Mitral valve
6. The largest artery in the human body, originating from the left ventricle, is the .
7. The wall separating the left and right sides of the heart is called the .
8. Deoxygenated blood enters the right atrium from the body via the superior and inferior .
9. Describe the primary function of the pulmonary artery and pulmonary vein, highlighting the difference in the type of blood they carry.
10. Explain how the structure of the left ventricle differs from the right ventricle and relate this difference to their respective functions.
11. The tricuspid valve is located between the left atrium and the left ventricle.
True
False
12. The coronary arteries supply oxygenated blood to the heart muscle itself.
True
False
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