10 Questions
The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and ______.
plants
These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the ______.
blood
Gas exchange in the lungs occurs in millions of small air sacs; in mammals and reptiles these are called ______, and in birds they are known as atria.
alveoli
These air sacs communicate with the external environment via a system of ______, or hollow tubes, of which the largest is the trachea.
airways
These enter the lungs where they branch into progressively narrower secondary and tertiary ______.
bronchi
Which of the following is NOT a function of the respiratory system?
Producing red blood cells
Which term is used to describe the microscopic air sacs in the lungs of mammals and reptiles?
Alveoli
What is the largest hollow tube in the respiratory system?
Trachea
Which of the following factors does NOT influence the anatomy and physiology of the respiratory system?
Dietary habits
What is the primary purpose of the respiratory surface in land animals?
Gas exchange
Test your knowledge of the respiratory system with this informative quiz! Learn about the anatomy, physiology, and gas exchange process in animals and plants.
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