Question:
All of the following are extrinsic laryngeal membranes or ligaments, except:
All of the following are extrinsic laryngeal membranes or ligaments, except:
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Extrinsic ties the larynx to the hyoid or trachea; a membrane between two laryngeal cartilages is intrinsic.
Updated On: Jun 24, 2026
- Hyoepiglottic
- Cricothyroid
- Cricotracheal
- Thyrohyoid
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The Correct Option is B
Solution and Explanation
Step 1: Laryngeal connective tissue is grouped into extrinsic and intrinsic components. The extrinsic membranes and ligaments connect the laryngeal cartilages to surrounding structures such as the hyoid bone above and the trachea below. The intrinsic ones connect the laryngeal cartilages to each other.
Step 2: The main extrinsic connections are the thyrohyoid membrane with its ligaments (links thyroid cartilage to hyoid bone), the hyoepiglottic ligament (links epiglottis to hyoid bone), and the cricotracheal ligament (links cricoid cartilage to the first tracheal ring).
Step 3: The cricothyroid ligament, also called the cricothyroid membrane or conus elasticus, runs between the cricoid and thyroid cartilages, which are both laryngeal cartilages. Since it joins two parts of the larynx itself, it is an intrinsic membrane, not an extrinsic one.
Step 4: Therefore Hyoepiglottic, Cricotracheal and Thyrohyoid are extrinsic, while Cricothyroid is the exception.
Answer: B. Cricothyroid.
Step 2: The main extrinsic connections are the thyrohyoid membrane with its ligaments (links thyroid cartilage to hyoid bone), the hyoepiglottic ligament (links epiglottis to hyoid bone), and the cricotracheal ligament (links cricoid cartilage to the first tracheal ring).
Step 3: The cricothyroid ligament, also called the cricothyroid membrane or conus elasticus, runs between the cricoid and thyroid cartilages, which are both laryngeal cartilages. Since it joins two parts of the larynx itself, it is an intrinsic membrane, not an extrinsic one.
Step 4: Therefore Hyoepiglottic, Cricotracheal and Thyrohyoid are extrinsic, while Cricothyroid is the exception.
Answer: B. Cricothyroid.
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