Lsn 15, VAP 21.1 - 21.9

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

All of the answers are correct.

During swallowing, the larynx is elevated. solids and liquids are prevented from entering the respiratory tract. the epiglottis folds back over the glottis. 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 helps warm the air. keeps out debris. keeps out pathogens. helps filter the air. All of the answers are correct.

All of the answers are correct.

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

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 atelectasis. emphysema. apnea. anaplasia. metaplasia.

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 into the pharynx. provide an opening to paranasal sinuses. 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 thyroid cartilage. epiglottis. arytenoid cartilage. cricoid cartilage. corniculate cartilage.

epiglottis.

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

oropharynx

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

pharynx.

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

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. left primary right secondary left secondary right primary None of the answers are more likely.

right primary

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

secondary bronchi.

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

terminal bronchioles

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

the opening to the larynx.

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

upper respiratory tract.

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

internal respiration.

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

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 mucus escalator. lamina propria. respiratory defense system. respiratory mucosa. conducting portion of the respiratory tract.

mucus escalator.

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

nasopharynx.