31 Questions
What is the main function of the larynx?
Responsible for voice production
Where is the larynx situated in the human body?
Above the tongue and hyoid bone
What forms the framework of the larynx?
Cartilages interconnected by ligaments and membranes
Which structure of the larynx is the largest cartilage?
Thyroid cartilage
What extends upward and downward from the posterior border of the thyroid cartilage?
Inferior and superior cornu
What is the angle between the two laminae of the thyroid cartilage in men and women?
$90^\circ$ in men and $120^\circ$ in women
Which cartilage completely encircles the airway and has facets for articulation with the inferior cornu of the thyroid cartilage?
Cricoid cartilage
Which ligament connects the upper margin of the thyroid cartilage to the hyoid bone?
Thyrohyoid ligament
Where are the cuneiform cartilages found?
In the aryepiglottic folds
Which cartilages are pyramid-shaped and sit on the cricoid cartilage with facets for articulation with the arytenoid cartilage?
Arytenoid cartilages
What is the shape of the cricoid cartilage and how is it positioned in relation to the thyroid cartilage?
Signet ring shape, below the thyroid cartilage
Which ligament connects the inferior end of the epiglottic cartilage to the posterior median aspect of the thyroid lamina?
Thyroepiglottic ligament
What is the function of the cuneiform cartilages?
To strengthen the aryepiglottic folds
What does the thyrohyoid membrane connect?
The upper margin of the thyroid cartilage to the hyoid bone
What is composed of two parts, namely upper quadrangular membrane and lower cricothyroid ligament?
Fibro-elastic membrane of the larynx
Where is the larynx situated in the human body?
The larynx is situated below the tongue and hyoid bone, opening above into the laryngeal part of the pharynx, and below is continuous with the trachea.
What is the main function of the larynx?
The main function of the larynx is to provide a sphincter to close the lower respiratory tract and to be responsible for voice production.
What forms the framework of the larynx?
The framework of the larynx is formed of cartilages that are interconnected by ligaments and membranes, moved by muscles, and lined by mucous membrane.
What are the three large unpaired cartilages of the larynx?
The three large unpaired cartilages of the larynx are the thyroid, cricoid, and epiglottis.
What is the shape of the cricoid cartilage and how is it positioned in relation to the thyroid cartilage?
The cricoid cartilage is a complete ring of cartilage, positioned below the thyroid cartilage, and it forms the inferior boundary of the larynx.
Where are the cuneiform cartilages found?
The cuneiform cartilages are found in the aryepiglottic fold, which extends from the epiglottis to the arytenoid cartilage.
What are the two small conical cartilages whose bases articulate with the arytenoid cartilages?
Corniculate cartilages
What is the function of the cricotracheal ligament?
It connects the cricoid cartilage to the first ring of the trachea.
Where are the cuneiform cartilages located?
In the aryepiglottic folds
What is the shape of the cricoid cartilage and how is it positioned in relation to the thyroid cartilage?
It is shaped like a signet ring, lying below the thyroid cartilage and completely encircling the airway.
What is the main function of the thyrohyoid membrane?
It connects the upper margin of the thyroid cartilage to the hyoid bone.
What are the two parts of the fibro-elastic membrane of the larynx?
Upper quadrangular membrane and lower cricothyroid ligament (cricovocal membrane and cricothyroid membrane)
What is the anatomical significance of the arytenoid cartilages?
They articulate with the corniculate cartilage and serve as attachment points for vocal cords.
How is the epiglottis attached to the laryngeal structures?
Its stalk is attached to the back of the thyroid cartilage via thyro-epiglottic ligament, and its sides are attached to the arytenoid cartilages by the aryepiglottic folds of mucous membrane.
What is the function of the hyoepiglottic ligament?
It connects the anterior surface of the epiglottis to the body of the hyoid bone.
What structures complete the architectural framework of the laryngeal cavity?
The intrinsic membrane of the larynx
Test your knowledge of the anatomy of the larynx with this quiz by Dr. Israa Khalil. Explore the structure, function, and position of the larynx in the neck.
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