Exam 23: The Respiratory System

Which of the following cartilages of the larynx is anchored to the trachea inferiorly?

The respiratory centers for controlling breathing are located in the pons and the _________of the brain stem.

The posterior (bony) portion of the nasal septum consists of the vomer and perpendicular plate of the ethmoid bone. The anterior portion is formed by the septal nasal cartilage.

The cricoid cartilage is an important landmark in determining the site for a tracheotomy.

Which cartilages are indicated in the figure?

The pharyngeal tonsil (adenoid) and the auditory (eustachian) tubes are located in the oropharynx.

Which of the following does NOT form part of the nasal septum?

Which of the following are openings into the nasopharynx? 1) auditory (eustachian) tubes 2) fauces 3) internal nares 4) external nares 5) nasolacrimal ducts

The epiglottis

The trachea is a tubular passageway for air, inferior to the larynx and anterior to the esophagus.

The internal nose communicates posteriorly with the nasopharynx through the

Which of the following is a TRUE statement concerning the larynx?

Which cranial bone(s) is/are most responsible for the skeletal framework of the nasal cavity?

The cricoid is a movable flap of elastic cartilage associated with the larynx.

Sympathetic stimulation results in constriction of bronchioles.

The alveoli are lined with two types of epithelial cells: Type I alveolar cells (simple squamous epithelial cells) which are the main sites of gas exchange and Type II alveolar cells (septal cells) which secrete alveolar fluid.

The floor of the nasal cavity

Pulmonary ventilation (breathing) involves the physical movement of air between the alveoli and atmospheric air.

Openings of the internal nose include the internal nares (choanae) and the ducts that connect to all paranasal sinuses.

The vocal folds (true vocal cords) of adult females are usually thinner and vibrate more rapidly than those of adult males.