Circulatory and Respiratory Systems

Flashcard
•
Science
•
7th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the main organ in the respiratory system?
Back
Lungs
2.
FLASHCARD QUESTION
Front
What is the primary function of the respiratory system?
Back
To facilitate gas exchange, providing oxygen to the body and removing carbon dioxide.
3.
FLASHCARD QUESTION
Front
What are the main components of the circulatory system?
Back
Heart, blood vessels (arteries, veins, capillaries), and blood.
4.
FLASHCARD QUESTION
Front
How does physical activity affect heart rate and breathing rate?
Back
As physical activity increases, heart rate increases and breathing rate increases.
5.
FLASHCARD QUESTION
Front
What is the trachea commonly known as?
Back
The windpipe.
6.
FLASHCARD QUESTION
Front
What is the role of the diaphragm in respiration?
Back
The diaphragm contracts and relaxes to help draw air into and push air out of the lungs.
7.
FLASHCARD QUESTION
Front
What is the function of red blood cells in the circulatory system?
Back
To transport oxygen from the lungs to the body's tissues and carry carbon dioxide back to the lungs.
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