Lsn 15, VAP 21.1-21.9

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Damage to the type II pneumocytes of the lungs would result in a loss of surfactant. increased tendency to alveolar collapse. a decreased rate of gas exchange. increased surface tension in the alveoli. All of the answers are correct

All of the answers are correct

During swallowing, solids and liquids are prevented from entering the respiratory tract. the epiglottis folds back over the glottis. the larynx is elevated. All of the answers are correct. None of the answers is correct

All of the answers are correct.

The respiratory defense system is important because it keeps out pathogens. helps filter the air. keeps out debris. helps warm the air. All of the answers are correct.

All of the answers are correct.

Each terminal bronchiole supplies air directly to a single pulmonary lobule. several alveolar sacs. about 6500 bronchioles. over 150 million alveoli. a single alveolar duct.

a single pulmonary lobule

If the fluid bond between the parietal and visceral pleura is broken and the lung collapses, the resulting condition is termed metaplasia. apnea. emphysema. atelectasis. anaplasia

atelectasis.

The conchae create turbulence in the air to trap particulate matter in mucus. divide the nasal cavity into a right and a left side. provide an opening to paranasal sinuses. provide an opening into the pharynx. form part of the soft palate.

create turbulence in the air to trap particulate matter in mucus.

The laryngeal cartilage composed of elastic cartilage that prevents entry of solids or liquids into the larynx when swallowing is the cricoid cartilage. thyroid cartilage. arytenoid cartilage. corniculate cartilage. epiglottis

epiglottis

Starting at the ________, the epithelium changes to stratified squamous epithelium. larynx nasal cavity trachea oropharynx nasopharynx

oropharynx

The common passageway shared by the respiratory and digestive systems is the larynx. trachea. vestibule. pharynx. glottis.

pharynx.

Which structure is located most superior at the hilum of the left lung? oblique fissure pulmonary veins pulmonary artery primary bronchus

pulmonary artery

During a choking episode, most foreign objects are more likely to become lodged in the ________ bronchus due to its larger diameter and steeper angle. right primary left secondary left primary right secondary None of the answers are more likely.

right primary

In the lower respiratory tract, cartilage plates first appear at the bronchioles. primary bronchi. terminal bronchioles. secondary bronchi. tertiary bronchi.

secondary bronchi.

Air traveling from the tertiary bronchi must pass through the ________ to reach the pulmonary lobule. primary bronchi secondary bronchi trachea alveoli terminal bronchioles

terminal bronchioles

The glottis is a flap of elastic cartilage. the opening to the pharynx. the soft tissue that hangs off the end of the soft palate. part of the hard palate. the opening to the larynx.

the opening to the larynx.

Air entering the body is filtered, warmed, and humidified by the lungs. bronchioles. alveoli. lower respiratory tract. upper respiratory tract.

upper respiratory tract.

Absorption of O2 from blood and release of CO2 from tissue cells is known as internal respiration. pulmonary ventilation. alveolar ventilation. external respiration. gas diffusion

internal respiration.

The trachea, bronchi, bronchioles and alveoli all make up the alveoli of the respiratory tract. upper respiratory tract. internal respiratory tract. respiratory mucosa. lower respiratory tract

lower respiratory tract

Tension on the vocal cords is regulated by the movement of the arytenoid cartilages. extrinsic ligaments. contraction of laryngeal muscles. movement of the arytenoid cartilages and contraction of voluntary muscles. None of the answers is correct.

movement of the arytenoid cartilages and contraction of voluntary muscles.

The beating of the cilia of the respiratory passages in the direction of the pharynx forms the lamina propria. mucus escalator. respiratory mucosa. conducting portion of the respiratory tract. respiratory defense system.

mucus escalator.

The auditory tubes open into the nasopharynx. nasal cavity. laryngopharynx. larynx. oropharynx.

nasopharynx.


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