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29 terms

2AnatomyFinal:The Respiratory System

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The walls of the alveoli are composed largely of
simple squamous epithelium
The superior portion of the pharynx is called the
nasopharynx
Which of the following is not true of the lungs
both lungs have two lobes
The condition that leads to the death of many full-term newborn infants and is still incompletely understood is
SIDS
The conducting passageways of the repiratory system include all of the following except
alveoli
The auditory tubes, which drain the middle ear, open into the
nasopharynx
Air moving into and out of the lungs is
pulmonary ventilation
The respiratory conducting passageways do all of the following except
exchange gases
The bluish cast that results from inadequate oxygenation of the tissues is called
cyanosis
Gas exchange occurs by
simple diffusion
Cessation of breathing is called
apnea
Cilia of the trachea propel contaminated mucus
toward the lungs to be encapsulated
Which of the following are the most damaging and disabling respiratory diseases at present
COPD and lung cancer
Which of the following is not a feature of COPD
most patients have a genetic predisposition to COPD
Which of the following are not part of the respiratory zone structures
primary bronchi
The nasal cavity is separated from the oral cavity by
both the hard and soft palate
The molecule that lowers surface tension in the alveoli, preventing lung collapse, is called
surfactant
Which of the following is not a function of the sinuses
they are olfactory receptors for smell
The adenoids are also called the
pharyngeal tonsils
The lipid molecule that coats the alveolar surfaces is called
surfactant
Internal respiration is gas exchange between:
blood and tissue cells
Which of the following bones does not contain paranasal sinuses
mandible
Which of the following is not true of lung cancer
it is more prevalent in males than females
Which of the following is not true of cystic fibrosis
it is rarely fatal
One of the most important stimuli leading to increased rate and depth of breathing is
increased carbon dioxide in the blood
Which of the following does not apply to the right primary bronchus
it is narrower than the left bronchus
Most carbon dioxide is transported in plasma as
bicarbonate ion
Which of the following cannot be said of expiration
intrapulmonary volume increases when the lungs recoil
Which of the following is not true of inspiration
relaxation of the external intercostals helps increase the size of the thoracic cavity