Circulatory & Respiratory Systems
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the main function of the circulatory system?
Back
The main function of the circulatory system is to transport materials such as oxygen, nutrients, hormones, and waste products throughout the body.
2.
FLASHCARD QUESTION
Front
What is the function of red blood cells?
Back
Red blood cells carry oxygen from the lungs to the body's cells and carry carbon dioxide from the body's cells back to the lungs.
3.
FLASHCARD QUESTION
Front
Which system delivers more oxygen to muscles during exercise?
Back
The circulatory system responds to exercise by delivering more oxygen to the muscles.
4.
FLASHCARD QUESTION
Front
What happens to heart rate during exercise?
Back
If a person exercises, then their heart rate will increase.
5.
FLASHCARD QUESTION
Front
What do we do when we exhale?
Back
When we exhale, we are letting out air from our lungs.
6.
FLASHCARD QUESTION
Front
What is the role of the heart in the circulatory system?
Back
The heart pumps blood throughout the body, supplying oxygen and nutrients to tissues and removing waste products.
7.
FLASHCARD QUESTION
Front
What are the main components of the circulatory system?
Back
The main components of the circulatory system include the heart, blood vessels (arteries, veins, and capillaries), and blood.
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