Respiratory System: Question Preview (ID: 1375)

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Your respiratory system takes in oxygen so your cells can do which chemical reaction?
a) photosynthesis b) cellular respiration c) fermentation d) replication
Your lungs have air sacs that come in contact with your blood stream to send oxygen to your cells. These air sacs are called
a) pharynx b) cilia c) capillaries d) alveoli
The ___________ is a muscle that moves to create a partial vacuum, forcing air into your lungs.
a) pharynx b) diaphragm c) rib cage d) alveoli
Epiglottis is a flap that covers the ____________ when you swallow food. This prevents choking.
a) trachea b) lungs c) esophagus d) pharynx
When carbonic acid (a byproduct of carbon dioxide) builds up in your blood, your brain tells your body to breathe
a) faster b) more quietly c) at the same rate d) slower
The respiratory system works mostly closely with which system?
a) digestive b) circulatory c) nervous d) immune
Where is the carbon dioxide that you breathe out produced?
a) your heart b) cells as a waste product of cellular respiration c) lungs d) cells as a waste product of photosynthesis
Which part of the respiratory system warms the air?
a) lungs b) mouth c) alveoli d) nose
Oxygen crosses into the __________ of the bloodstream at the ______________ of the lungs.
a) capillaries; alveoli b) arteries; veins c) alveoli; capillaries d) veins; arteries
List the respiratory structures in order from largest to smallest:
a) bronchioles, bronchi, alveoli b) alveoli, bronchioles, bronchi c) bronchi, bronchioles, alveoli d) bronchi, alveoli, bronchioles
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