Laryngeal Membranes - ligaments, joints, cavities

Question 1

Laryngeal Membranes and Ligaments divided into 2 groups

Answer 1

1) EXTRINSIC LARYNGEAL MEMBRANES

Connect the LARYNX with the ADJACENT structures for support

2) INTRINSIC LARYNGEAL MEMBRANES

Connect the LARYNGEAL CARTILAGES to each other and regulate movement

Question 2

Extrinsic Laryngeal Ligaments

Answer 2

1) HYOEPIGLOTTIC LIGAMENT

A point of attachment between the hyoid bone and the epiglottis

connects the anterior surface of the epiglottis to the corpus or body of the hyoid bone

2) CRICOTRACHEAL LIGAMENT

A point of attachment between the cricoid cartilage and the first tracheal ring

Question 3

Extrinsic Laryngeal MEMBRANES

Answer 3

1) HYOTHYROID MEMBRANE

Joins the inferior border of the Hyoid Bone and the superior border of the Thyroid Cartilage

2) CRICOTRACHEAL MEMBRANE

Joins the inferior border of the cricoid cartilage and the superior border of the first tracheal ring

Question 4

Intrinsic Laryngeal Membranes (3)

Answer 4

1) Conus Elasticus (AKA Cricovocal Membrane)

2) Quadrangular Membrane

3) Aryepiglottic Folds

Question 5

Intrinsic Laryngeal Ligaments

Answer 5

Only ONE

VOCAL LIGAMENT - an upward extension of Conus Elasticus

Question 6

What do all intrinsic laryngeal membranes have in common?

Answer 6

All of the intrinsic laryngeal membranes arise from ONE broad SHEET of CONNECTIVE TISSUE

Question 7

Conus Elasticus

Answer 7

Most inferior portion of this sheet of tissue

Joins THYROID, ARYTENOID, + CRICOID CARTILAGES

Question 8

Quadrangular Membrane

Answer 8

Most SUPERIOR portion of this sheet of tissue

Joins the EPIGLOTTIS to the ARYTENOID + THYROID CARTILAGES

Question 9

Location of aryepiglottic folds

Answer 9

located on the lateral aspects of the epiglottis

Question 10

Vocal Ligament

Answer 10

Contained within the vocal folds

Comprised of yellow, elastic tissue

Courses anteriorly, from the angle of the thyroid cartilage, to the vocal process of the arytenoids, posteriorly

Will STIFFEN + SUPPORT the Vocal Folds

Question 11

Laryngeal Joints (2)

Answer 11

1) CRICOARYTENOID JOINT
2) CRICOTHYROID JOINT

Question 12

Cricoarytenoid Joint

Answer 12

Forms the articulation between the cricoid + arytenoid cartilages

Allows the vocal folds to approximate, or make contact, or to come together @midline

Question 13

Cricothyroid Joint

Answer 13

Forms the articulation between the circoid + inferior cornu of the thyroid cartilage

Joint aids in tensing the vocal folds - lengthening of the vocal ligaments

When vocal folds become tense, pitch goes up or increases

Question 14

Laryngeal Cavities (6)

Answer 14

1) Aditus Larynges (Laryngis)

2) Pyriform Sinus

3) Vallecula

4) Vestibule

5) Ventricle

6) Glottis

AP triple V G

Question 15

Aditus Larynges

Answer 15

Viewed either as the ENTRANCE to the LARYNX, or as the first space in the larynx

It is a space that is bound anteriorly by the epiglottis, laterally by the aryepiglottic folds, and posteriorlyy by the arytenoid cartilages

Question 16

Pyriform Sinus

Answer 16

Small fossae or indentations between the aryepiglottic folds [medially] + the mucous lining of the thyroid cartilage

Question 17

Vallecula

Answer 17

Space located between the tongue and the epiglottis

Question 18

Vestibule

Answer 18

Space between Aditus Larynges and the ventricular folds (AKA false vocal folds)

It is bound laterally by the aryepiglottic folds, and posteriorly by the arytenoid cartilages

Question 19

Ventricle

Answer 19

Ventricle Cavity

space between the true folds and the ventricular folds (i.e. false folds)

Question 20

Glottis

Answer 20

Space between the true vocal folds