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Cards In This Set
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List the functions of respiratory system
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Provide an extensive area for gas exchange.
Move air to and from the gas exchange surfaces. Protect respiratory surfaces (eg dehydration, temperature ). Defend against pathogenic (disease) invasion. Vocal communication.Regulation of blood volume, pressure and body fluid pH. |
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List the function(s) of the upper respiratory tract
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Communication and air conditioner (cleans, moistens and warms the air).
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Why do cells need oxygen?
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To provide ATP (energy) for growth, repair and other functions.
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List the function(s) of the lower respiratory tract.
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Controls air flow, delivers the air to gas exchange surfaces, allows gas exchange and regulates blood volume, pressure and the control of body fluid pH.
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Explain two ways the nose prevents foreign material entering the rest of the respiratory system
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Hairs block the entrance and mucous traps the dust (swept away by cilia)
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What is the pharynx?
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The pharynx is the throat, between the mouth and the trachea/oesophagus
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How is food prevented from entering the airways?
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The epiglottis is a flap of tissue that covers the larynx to prevent food entering
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Explain the function(s) of the larynx.
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Provides an open airway, closes the airway during swallowing, and produces sound vibrations.
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Explain the cilia-mucous escalator.
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Mucous traps particles that enter the airways and cilia sweeps it to the mouth
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What is the function of the smooth muscle in the bronchi?
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Smooth muscle controls airflow – reducing or increasing airflow as needed
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Which are smaller bronchi or bronchioles?
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Bronchioles are smaller than bronchi
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Explain the function(s) of the alveoli
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Alveoli provide the surface for gas exchange.
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What muscles are involved in breathing? Which are for inspiration and which for expiration.
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Inspiratory muscles: diaphragm and external intercostals.
Expiratory muscles: internal intercostals and abdominal muscles |
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Put in the table below, the letter for the structures of the respiratory tract and put this letter beside the function for this structure
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Structure
alveoli F bronchioles A larynx C primary bronchi D secondary bronchi E tertiary bronchi B trachea Letter Function F conducts air to alveoli D conducts air to each lobe of the lung C conducts air to each lung E conducts air to lobules of the lung B conducts air to lungs G surface for gas exchange A voice production |
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Which diagram below matches inspiration and which matches expiration.A
 B |
Inspiration = diagram B, expiration = diagram A.
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