Larynx Overview: Laryngeal Cartilages

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What is the shape of the cricoid cartilage?

Triangular

Ring-shaped (correct)

Cylindrical

Pyramidal

Which part of the thyroid cartilage elongates into superior and inferior horns?

Thyrohyoid membrane

Laryngeal prominence

Oblique line

Laminae (correct)

What structure forms the vocal process on the arytenoid cartilages?

Lateral angle

Apex

Base

Anterior angle (correct)

Which ligament has an opening for the internal laryngeal nerve and superior laryngeal artery?

Thyrohyoid membrane Signup and view all the answers

Which cartilage is fused anteriorly at the laryngeal prominence?

Thyroid cartilage Signup and view all the answers

What is the lateral surface feature of each lamina of the thyroid cartilage?

Ridge Signup and view all the answers

Which structure forms the muscular process on the arytenoid cartilages?

Base Signup and view all the answers

What does the free edge of the cricothyroid ligament form within the larynx?

Vocal process Signup and view all the answers

Which cartilage forms the most inferior part of the larynx?

Cricoid Cartilage Signup and view all the answers

What does the cricothyroid ligament connect?

Cricoid cartilage to thyroid cartilage Signup and view all the answers

Which structure facilitates the movement of liquid and solid to the esophagus?

Piriform fossa Signup and view all the answers

What is the function of the vestibular ligament in the larynx?

Supporting the vocal folds Signup and view all the answers

Which muscle group depresses the larynx?

Infrahyoid muscles Signup and view all the answers

What is the main function of the intrinsic laryngeal muscles?

Close the laryngeal inlet Signup and view all the answers

Which muscle does not belong to the group of suprahyoid muscles that elevate the larynx?

Sternothyroid Signup and view all the answers

What is the glottis composed of in the vocal apparatus?

Vocal folds and rima glottidis Signup and view all the answers

Which muscle is responsible for adjusting the length of the vocal ligaments by tilting the thyroid cartilage?

Cricothyroid Signup and view all the answers

During swallowing, which muscles narrow and close the laryngeal inlet?

Oblique arytenoids and posterior cricoarytenoid Signup and view all the answers

Which muscle is responsible for abducting the vocal folds and opening the rima glottidis?

Lateral cricoarytenoid Signup and view all the answers

Which nerve provides motor innervation to ALL muscles of the larynx except cricothyroid?

Recurrent laryngeal nerve Signup and view all the answers

What is the function of the external laryngeal nerve?

Motor innervation of cricothyroid Signup and view all the answers

Which arteries supply blood to the larynx?

Inferior thyroid artery and superior laryngeal artery Signup and view all the answers

Which muscles are responsible for adducting the vocal folds and closing the rima glottidis?

Transverse arytenoids and oblique arytenoids Signup and view all the answers

Which muscle acts as a relaxer of vocal ligaments?

Thyroarytenoid Signup and view all the answers

What is the function of the pharyngotympanic tubes (Eustachian tubes)?

Ensure near normal environmental air pressure in the middle ear Signup and view all the answers

What can an enlargement of the pharyngeal tonsils result in?

Upper respiratory airway obstruction Signup and view all the answers

Where are the pharyngeal tonsils located?

Nasopharynx Signup and view all the answers

What can cause a toothache in the upper rear teeth according to the text?

Sinus infection or inflammation Signup and view all the answers

Which structure ventilates the middle ear and ensures normal air pressure?

Pharyngotympanic tubes Signup and view all the answers

What type of epithelium lines the nasal cavity?

Pseudostratified columnar ciliated epithelium Signup and view all the answers

Which structure contains the openings of the pharyngotympanic tubes?

Nasopharynx Signup and view all the answers

What are the components of the upper respiratory tract?

Nasal cavity, portions of pharynx, larynx, trachea, bronchi Signup and view all the answers

Which structure subdivides the nasal cavity and creates turbulence in inspired air?

Middle nasal concha Signup and view all the answers

What is the function of the superior one-third of the nasal cavity?

Olfaction Signup and view all the answers

Which of the following is part of the bony framework of the nasal cavity?

Nasal conchae Signup and view all the answers

What are the components of the larynx?

Cartilage and membranes Signup and view all the answers

Which cartilage in the larynx is known as Adam's apple?