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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