What is the main function of the circulatory system?
Circulatory, Respiratory, & Digestive Asher

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
To transport blood, nutrients, gases, and waste products throughout the body.
2.
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.
3.
FLASHCARD QUESTION
Front
Define 'alveoli'.
Back
Tiny air sacs in the lungs where gas exchange occurs.
4.
FLASHCARD QUESTION
Front
What is the function of the epiglottis?
Back
To prevent food and liquid from entering the trachea during swallowing.
5.
FLASHCARD QUESTION
Front
What are capillaries?
Back
Small blood vessels that connect arteries and veins, allowing for the exchange of materials between blood and tissues.
6.
FLASHCARD QUESTION
Front
Describe the pathway of blood through the heart.
Back
Blood enters the right atrium, moves to the right ventricle, is pumped to the lungs, returns to the left atrium, moves to the left ventricle, and is pumped to the body.
7.
FLASHCARD QUESTION
Front
What is the function of the diaphragm in the respiratory system?
Back
To contract and relax, facilitating breathing by changing the pressure in the thoracic cavity.
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