Larynx: Ligaments, Membranes, And Folds

Question 1

Thyrohyoid membrane extent

Answer 1

Extends from upper border and superior horns of thyroid cartilage to upper part of posterior surface hyoid body and its greater horns

Question 2

Thyrohyoid membrane parts

Answer 2

1. Median thick part (thyrohyoid ligament)
2. Lateral thin part
3. Posterior cord-like part (lateral thyrohyoid ligament)

Question 3

Lateral thin partb

Answer 3

Pierced by superior laryngeal vessels and internal laryngeal nerve

Question 4

Lateral thyrohyoid ligament

Answer 4

Connects thyroid cartilage superior horn and hyoid greater horn

Question 5

Ligaments and folds attached to epiglottis

Answer 5

1. Hyoepiglottic and thryoepiglottic ligaments
2. 3 glossoepiglottic folds
3. 2 aryepiglottic folds
4. Quadrangular membranes (ligaments)

Question 6

Hyoepiglottic and thyroepiglottic ligaments

Answer 6

2 ligaments connecting epiglottis with hyoid body and thyroid cartilage

Question 7

3 glossoepiglottic folds

Answer 7

One median and 2 lateral folds connecting epiglottis upper part to tongue root

Question 8

2 aryepiglottic folds

Answer 8

Connect epiglottis sides to arytenoid apices

Question 9

Quadrangular membranes

Answer 9

1. Fibroelastic membrane
2. Anterior: epiglottis sides
3. Posterior: arytenoid cartilages
4. Upper free border: forms aryepiglottic fold
5. Lower free border: forms vestibular fold

Question 10

Ligaments attached to cricoid cartilage

Answer 10

1. Cricotracheal ligament
2. Cricothyroid ligament

Question 11

Cricotracheal ligament

Answer 11

Connects cricoid lower border to 1st tracheal ring

Question 12

Cricothyroid ligament parts

Answer 12

1. Median thick anterior part (cricothyroid ligament)
2. Lateral thin part (cricovocal membrane)

Question 13

Cricothyroid ligament part

Answer 13

Connects anterior parts of thyroid and cricoid cartilages

Question 14

Cricovocal membrane part

Answer 14

1. Below: attached to cricoid upper border
2. Above: its upper border is free and thick
3. It extends from from arytenoid vocal process to inner surface of thyroid cartilage angle (vocal fold or vocal ligament)

Question 15

All larynx ligaments and membranes

Answer 15

All are extrinsic except Quadrangular and cricovocal ligaments are intrinsic

Question 16

Cavity

Answer 16

Extends from larynx inlet to cricoid lower border
Divided into 3 part:
1. Vestibule
2. Sinus
3. Nfraglottic part

Question 17

Vestibule part

Answer 17

Upper part from laryngeal inlet to vestibular folds

Question 18

Nfraglottic part

Answer 18

Lower part from vocal fold till cricoid lower border

Question 19

Larynx inlet

Answer 19

1. Directed upwards and backwards
2. Communication larynx with laryngopharynx
3. Anterior: bounded by epiglottis upper border
4. Posterior: mucosa between arytenoids
5. Lateral, on each side: aryepiglottic