This biology worksheet provides information and questions about the circulatory system. It introduces the main function of the circulatory system which is to move blood through major body parts. It also includes a diagram of the heart chambers and valves that need to be labeled. There are questions about the blood flow pathways through the heart and descriptions of capillaries and the differences between systolic and diastolic blood pressure that need to be answered.

1. SOYUZ BILINGUAL SCHOOL
BIOLOGY WORKSHEET
CIRCULATORY SYSTEM
CIRCULATORY SYSTEM
Main function
Blood moves through major parts
1. 2. 3. 4.
Fill the main chambers and valves of the heart.
RIGHT
L EFT
1. Right atrium 3.
Tricuspid valve
__________________valve
HEART STRUCTURE
2.
4.
__________________valve
__________________valve
Differences and similarities between arteries and veins

2. Complete the following information according to the blood flow in the heart.
4. To:
5. To:
6. From:
LEFT ATRIUM
7. To:
1. From:
2. To:
3. From:
RIGHT ATRIUM
RIGHT VENTRICLE

3. Describe the capillaries.
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Difference between systolic and diastolic pressure
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