1) what is the alveoli main function? a) it has no function b) making ATP c) gas exchange d) to circulate blood 2) what is commonly referred to as the voice box? a) nose b) mouth c) trachea d) larynx 3) what is referred to as the windpipe? a) lungs b) trachea c) larynx d) alveoli 4) What are the air sacs called? a) alveoli b) bronchi c) lungs d) larynx 5) What is the name of the passageway connecting trachea to lung? a) windpipes b) bronchi c) lungs d) alveoli 6) What is the muscle that assists in breathing? a) rectus femoris b) diaphragm c) triceps brachii d) biceps brachii 7) Are both lungs the same size? a) yes b) no 8) Which lung is smaller? a) left b) right 9) Why is that one lung smaller? a) to breathe better b) it isnt c) genetics d) to make space for your heart 10) What is one purpose of a sinus? a) to produce mucus b) to close off the skull c) to make sound less loud d) to create viruses 11) Which area of the body contains most of the respiratory system? a) abdominal cavity b) nasal cavity c) thoracic cavity d) oral cavity e) upper chest cavity f) pelvic cavity 12) In the lungs, the exchange of carbon dioxide and oxygen occurs through the ____________. a) alveoli b) bronchi c) bronchioles d) diaphragm e) trachea f) larynx 13) the flap of tissue that covers the opening to the windpipe during swallowing is the _________. a) pharynx b) trachea c) epiglottis d) esophagus e) uvula 14) The trachea is covered in a protective layer of _______. a) connective tissue b) cartilage c) muscle d) bone e) fluid

Respiratory system

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