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Exam 2: Chapter 22
Terms in this set (45)
The mucosa of the nasal cavities (other than the olfactory region) and nasopharynx is:
pseudostratified ciliated columnar epithelium with goblet cells
The nasal cavity superior to the external nares is termed:
The percentage of oxygen carried bound to hemoglobin as Hb●O2
The amount of air you can exhale after a normal, resting exhalation.
expiratory reserve volume
The detergent-like secretion that coats the inside of the alveoli is produced by:
Type II alveolar cells
Which of the following do you NOT want in your blood?
The percentage of carbon dioxide carried in the blood as dissolved CO2 in plasma:
The largest of the laryngeal cartilages is the:
The laryngeal cartilage that closes the opening into the larynx when you swallow is the:
The total surface area of the alveoli of a healthy, adult human is approximately:
70 square meters
The amount of air you can inhale after a normal, resting inhalation.
inspiratory reserve volume
Which of the following does NOT make up part of the structure that separates the two nasal cavities:
a.) soft palate
b.) ethmoid bone
c.) septal cartilage of the nose
d.) vomer bone
A man with a VC of 4.8 liters is standing on the shore of Port Angeles Harbor. Another man with a VC of 4.0 liters (and wearing SCUBA gear) is sitting at the bottom of the harbor in 33 feet of water (10 meters deep). Each man takes the deepest breath he can. Which man has more air in his lungs?
The diaphragm and external intercostal muscles are involved in this process:
The term "pneumothorax" refers to:
air in the intrapleural space
The air remaining in the lungs after you exhale as much as you can.
Of the approximately 23 orders of branching in the respiratory system, those structures with smooth muscle and without cartilage are termed:
The dorsal and ventral respiratory groups and pontile centers control this process:
This is what your tissues actually do with the oxygen and where the carbon dioxide comes from.
For humans, the oxygen level in the body is normally the primary control for depth and rate of respiration
True or False
In which of the following would oxygen level (partial pressure) be very low (< 40 mm HG) and carbon dioxide level (partial pressure) be very high (> 45 mm Hg)?
interstitial fluid surrounding tissues
The chemical equation CO2 + H2O <-> H2CO3 (carbonic acid) <-> HCO3- (bicarbonate) + H+ refers to which process?
A sneeze reflex is triggered by an irritant:
in the resipratory system above the oropharynx and soft palate
During a normal resting breath, exhalation results from the elastic recoil of the alveoli and the chest wall, not because muscles of expiration are contracting
True or False
The amount of air in your lungs after you inhale as deeply as you can.
total lung capacity
The structure that allows equalization of pressure between the atmosphere and the middle ear is the:
f.)pharyngotympanic or auditory tube
pharyngotympanic or auditory tube
Neurons from the olfactory epithelium pass through the:
The term "atelectasis" refers to:
: The gas law that describes the relationship between total pressure exerted by a mixed gas and the pressure exerted by each gas in the mixture is:
The thin, serous membrane covering each lung is the:
Expired air has a partial pressure of oxygen that is ____________ that of air in the alveoli.
The detergent-like secretion that coats the inside of the alveoli, keeps water molecules from sticking together, keeps alveoli from collapsing between breaths, and allows alveoli to expand is:
Which of the following is not part of the respiratory membrane?
A.)smooth muscle of the bronchiole
B.)endothelium of alveolus C.)basement membrane
D.)all of these are part of the respiratory membrane E.)endothelium of pulmonary capillary
The percentage of carbon dioxide carried bound to hemoglobin as Hb●CO2
This pontile control center causes you to breathe more quickly and more shallow.
Intrapleural pressure is always ____________ intrapulmonary pressure.
The percentage of oxygen carried in the blood as dissolved O2 in plasma
This pontile control center continuously stimulates the inspiratory center and allows you to hold your breath
The narrow superior tip of a lung is termed the:
When blood flows through pulmonary capillaries, it takes about 0.75 seconds to pass completely through to pulmonary venules. How long does it typically take for the blood to reach 100% oxygen saturation?
Exchange of respiratory gases (oxygen and carbon dioxide) between the air in your alveoli and the blood in pulmonary capillaries.
This is also called the inspiratory center (as per Marieb) and is the main drive for resting breathing.
ventral respiratory group
The part of the lung where primary bronchi and pulmonary and systemic blood vessels enter is termed the:
The gas law that describes the relationship between volume and pressure in a gas-filled container (such as a lung) is:
Chemically, the substance known as surfactant is mainly:
lipoprotein and phospholipid
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