11.1 The Larynx Flashcards
What connects the hyoid bone to the thyroid?
Thyrohyoid membrane
What connects the thyroid to the cricoid cartilage?
Cricothyroid membrane
What are the three parts of the larynx?
Supraglottis
Glottis
Subglottis
What does the supraglottis area cover?
Epiglottis to the vestibular folds (false cords)
What does the glottis area cover?
Vocal cords
What does the subglottis area cover?
Vocal cords to cricoid cartilage
What are the lateral diverticulum in the supraglottis called?
Piriform fossa
What are the two pieces of cartilage that articulate with the cricoid cartilage and what are they for?
Arytenoid cartilage - Allows vocal cord movement
What is the epithelia on the vocal cords?
Stratified squamous epithelia
What nerve innervates the cricothyroid muscle?
External laryngeal nerve
What is the arterial supply to the laryngeal blood supply?
Superior laryngeal artery
Inferior laryngeal artery
(From the thyroid arteries)
What is a good and poor prognosis when it comes to Laryngeal carcinoma?
Glottis = good Subglottis = bad