chapter 23 sb part 2

Within the larynx, the inferior pair of ligaments running from the anterior surface of the arytenoid cartilage to the posterior thyroid cartilage are the folds or vocal cords.

Blank 1: vocal Blank 2: true

How is sound produced?

By air moving over vocal folds

Which of the following best describes the supportive structures of the trachea?

C-shaped rings composed of hyaline cartilage

Which component of the trachea is responsible for maintaining the open airway?

Cartilage

Indicate two mechanisms used to prevent food from entering the larynx.

Closure of glottis Tipping of epiglottis over glottis

What structure covers the opening to the larynx during swallowing?

Epiglottis

True or false: Foreign particles, trapped by the mucus layer lining the trachea, remain in position in the trachea where they are phagocytized by macrophages.

False

Identify the purpose of contraction and relaxation of the trachealis muscle.

Helps to expel mucus during coughing

Which features are associated with the tracheal epithelium? Select all that apply.

Pseudostratified columnar cells Mucous Cilia Goblet cells

Describe the function of the tracheal cartilages.

To maintain an open air passage

Identify the structure that conducts air from the larynx to the main (primary) bronchi.

Trachea

The inferior-most cartilage of the larynx is the ______ cartilage.

cricoid

The inferior portion of the larynx is formed by the

cricoid cartilage

The leaf-shaped structure which functions to seal off the glottis during swallowing is the

epiglottis leaf shape

The C-shaped rings that support the trachea are composed of cartilage tissue.

hyaline

The portion of the pharynx that extends from the soft palate to the epiglottis is the

oropharynx

The uvula can be described as the ______.

posterior extension of the soft palate

The cartilage of the larynx that forms the anterior wall of the larynx and the largest of the laryngeal cartilages is the _____ cartilage.

thyroid

Air is conducted from the larynx to the main (primary) bronchi by the

trachea

Within the larynx, the most inferior pair of ligaments are ______ folds.

vocal

Sound is produced as air moves past the

vocal fold