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Chapter 22, Respiratory System
Chapter 22, Respiratory System
10
Anatomy
Undergraduate 1
03/26/2010

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Term
For what metabolic reason does respiration occur?
Definition
to supply cells with 02 for ATP synthesis and to remove C02 from the blood
Term
The _____zone includes the alveoli, while the _________zone includes the trachea.
Definition
respiratory and conducting
Term
Occasionally food or liquids will "go down the wrong pipe," initiating a cough reflex. Which structural barrier has been breached if this happens?
Definition
Epiglottis
Term
The respiratory membrane is composed of:
Definition
the alveolar membrane, the capillary wall, and their fused basement membrane
Term
Air moves into the lungs during inspiration due to the force of
Definition
atmospheric pressure
Term
Air is forced out of the lungs during normal expiration due to:
Definition
elastic recoil of tissues
Term
Boyle's law explains that________.
Definition
the pressure of gas varies inversely with its volume
Term
Even the most forceful exhalation leaves air in the lungs; this is called the _______ and is needed to _______.
Definition
residual volume; keep alveoli patent
Term
All of the following statements are true of inspiration except:

a)The rib cage is elevated
B) the diaphragm is relaxed
C)volume in the thoracic cavity has increased
D) intrapulmonary pressure has decreased
Definition
B) the diaphragm is relaxed
(this is not true of inspiration)
Term
The rate of oxygen diffusion across the respiratory membrane depends upon all of the following except:
A)The thickness of the respiratory membrane
B) The thickness of the respiratory membrane
C)partial pressure of oxygen in the blood
D)partial pressure of carbon dioxide in the blood
Definition
D) partial pressure of carbon dioxide in the blood
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