Chapter 3 Phonatory System: membranes, ligaments, and cavities

Question 1

Extrinsic Laryngeal Membranes and ligaments

Answer 1

Group of ligaments and membranes that connect the cartilages of the larynx to each other and to the hyoid bone and trachea

Question 2

(Extrinsic Laryngeal Membranes and ligaments): Thyrohyoid membrane

Answer 2

Hyothyroid) connects hyoid bone to thyroid cartilage

Question 3

(Extrinsic Laryngeal Membranes and ligaments): Hyoepiglottic ligament

Answer 3

connects epiglottis to the hyoid bone

Question 4

(Extrinsic Laryngeal Membranes and ligaments): Thyroepiglottic ligament

Answer 4

connects the epiglottis to the thyroid

Question 5

(Extrinsic Laryngeal Membranes and ligaments): Cricotracheal membrane

Answer 5

connects the cricoid cartilage to the first tracheal ring

Question 6

Intrinsic Laryngeal Membranes and Ligaments

Answer 6

Continuous sheet of connective tissue (elastic membrane)

Question 7

(Intrinsic Laryngeal Membranes and Ligaments)

(Quadrangular Membranes upper portion): Aryepiglottic folds

Answer 7

Completely seal off the spaces in the laryngeal structure,

Directs the airstream into the aditus and upward into the resonatory passageways,

First line of defense against foreign objects,

Closes during swallowing and vomiting (Prevents food/liquid from entering respiratory tract)

Question 8

(Intrinsic Laryngeal Membranes and Ligaments)

(Quadrangular Membranes upper portion): Ventricular folds

Answer 8

Also known as false vocal folds,

Pink and plump,

Found between laryngeal vestibule and laryngeal ventricle,

When the ventricular folds contract, they meet at midline, closing or sealing off the airway,

Close during swallowing, and during effortful activities such as lifting heavy objects,

During normal phonation, ventricular folds remain in quiet, open position

Question 9

(Intrinsic Laryngeal Membranes and Ligaments)

(Conus Elasticus lower portion): Vocal folds

Answer 9

White because of a lack of vascular supply,

Third line of defense in keeping foreign objects out of lungs

Question 10

(Intrinsic Laryngeal Membranes and Ligaments)

(Conus Elasticus lower portion): Cricothyroid ligament

Answer 10

Connects the cricoid cartilage to the thyroid cartilage

Question 11

(Cavities and Spaces of the Larynx): Laryngeal vestibule

Answer 11

Area in larynx above ventricular folds,

Opening is called aditus

Question 12

(Cavities and Spaces of the Larynx): Laryngeal ventricle

Answer 12

Space between vocal folds and ventricular folds

Question 13

(Cavities and Spaces of the Larynx): Inferior Laryngeal ventricle (subglottal atrium)

Answer 13

Portion below the true folds,

Extend through to the trachea

Question 14

(Cavities and Spaces of the Larynx): Valleculae

Answer 14

Area between tongue root and epiglottis,

Impaired swallow can cause food/liquid to pool in valleculae which increases risk for aspiration

Question 15

(Cavities and Spaces of the Larynx): Pyriform sinus

Answer 15

Between the lateral wall of thyroid cartilage and aryepiglotic folds,

Impaired swallow can cause food/liquid to pool in pyriform sinus which increases risk for aspiration

Question 16

(Cavities and Spaces of the Larynx): Glottis

Answer 16

Opening between vocal folds,

Triangular shape during quiet respiration,

Anterior commissure: the anterior-most region of the glottis,

Posterior commissure: the posterior-most region of the glottis