Podcast
Questions and Answers
A patient presents with difficulty swallowing and a foreign body sensation in their throat. Imaging reveals a ligament connecting the epiglottis to the hyoid bone is possibly damaged. Which of the following ligaments is most likely affected?
A patient presents with difficulty swallowing and a foreign body sensation in their throat. Imaging reveals a ligament connecting the epiglottis to the hyoid bone is possibly damaged. Which of the following ligaments is most likely affected?
- Hyoepiglottic ligament (correct)
- Vocal ligament
- Thyroepiglottic ligament
- Cricothyroid ligament
During a surgical procedure involving the larynx, a surgeon needs to identify the main arterial supply to the upper half of the larynx. Which artery should the surgeon locate?
During a surgical procedure involving the larynx, a surgeon needs to identify the main arterial supply to the upper half of the larynx. Which artery should the surgeon locate?
- Superior thyroid artery
- Inferior laryngeal artery
- Superior laryngeal artery (correct)
- Inferior thyroid artery
A singer is experiencing voice fatigue and hoarseness. An examination reveals a potential issue with the muscles controlling the vocal cords. Which category of laryngeal muscles is primarily responsible for the fine movements of the vocal cords?
A singer is experiencing voice fatigue and hoarseness. An examination reveals a potential issue with the muscles controlling the vocal cords. Which category of laryngeal muscles is primarily responsible for the fine movements of the vocal cords?
- Intrinsic muscles (correct)
- Depressors of the larynx
- Elevators of the larynx
- Extrinsic muscles
A patient has undergone a procedure that damaged the nerve below the vocal cords. Which nerve was likely damaged, and what function is most likely impaired?
A patient has undergone a procedure that damaged the nerve below the vocal cords. Which nerve was likely damaged, and what function is most likely impaired?
Following a neck injury, a patient's larynx is compressed, leading to difficulty breathing. Which cartilaginous structure, crucial for maintaining the airway's patency as it continues into the trachea, is most likely affected?
Following a neck injury, a patient's larynx is compressed, leading to difficulty breathing. Which cartilaginous structure, crucial for maintaining the airway's patency as it continues into the trachea, is most likely affected?
Flashcards
Larynx
Larynx
A hollow muscular structure protecting the lower respiratory tract.
Cartilaginous skeleton
Cartilaginous skeleton
Framework of the larynx made mostly of hyaline cartilage.
Epiglottis
Epiglottis
Leaf-like cartilage behind the tongue that covers the larynx.
Intrinsic muscles
Intrinsic muscles
Signup and view all the flashcards
Blood supply to larynx
Blood supply to larynx
Signup and view all the flashcards
Study Notes
Larynx Structure and Function
- The larynx is a hollow musculo-ligamentous structure with a cartilaginous framework.
- It protects the lower respiratory tract.
- Located in the front of the neck, anterior to the pharynx.
- Extends between the fourth and sixth cervical vertebrae (C4 and C6).
- Acts as a valve, closing the lower respiratory tract to prevent foreign bodies from entering.
Larynx Anatomy
- Cartilaginous Skeleton: Primarily hyaline cartilage, except for the epiglottis, which is elastic cartilage.
- Membranes and Ligaments: Connect and support the cartilages.
- Muscles (Intrinsic and Extrinsic): Control the movements of the larynx, including the vocal cords.
- Mucosal Lining: The inner lining of the larynx.
Laryngeal Cartilages and Ligaments
- Cricoid Cartilage: Ring-shaped, continuous with the trachea.
- Epiglottis: Leaf-like cartilage behind the tongue.
- Hyoepiglottic ligament: Attaches the epiglottis to the hyoid bone.
- Thyroepiglottic ligament: Connects the epiglottis to the thyroid cartilage.
- Thyroid Cartilage: Forms the prominent "Adam's apple".
Laryngeal Muscles
- Extrinsic Muscles:
- Elevators of the larynx:
- Depressors of the larynx:
- Intrinsic Muscles:
- Muscles controlling the laryngeal inlet:
- Muscles controlling the movements of the vocal cords:
Blood Supply
- Upper half: Supplied by the superior laryngeal artery (branch of the superior thyroid artery).
- Lower half: Supplied by the inferior laryngeal artery (branch of the inferior thyroid artery).
Lymphatics
- Lymph vessels drain into the deep cervical lymph nodes.
Nerve Supply
- Above vocal cord: Internal laryngeal nerve.
- Below vocal cord: Recurrent laryngeal nerve.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the larynx, a vital structure protecting the lower respiratory tract. Learn about its cartilaginous skeleton, including the cricoid cartilage and epiglottis, along with its membranes, ligaments, and muscles. Understand the larynx's role in preventing foreign bodies from entering the respiratory system.
