Larynx

Question 1

Function of larynx

Answer 1

▪️musculoligamentus structure with cartilaginous framework
▪️continuous with trachea
▪️acts like a valve to clos the lower respiratory tract
▪️produces sound

Question 2

Parts of the larynx

Answer 2

▪️epiglottis cartilage 
▪️thyroid cartilage 
▪️cricoid cartilage 
▪️cuneiform cartilage 
▪️corniculate cartilage 
▪️arytenoid cartilage 
▪️hyoid bone

Question 3

Vocal chords

Answer 3

▪️from thyroid cartilage to arytenoids

▪️vocal ligaments connects cord to cricoid cartilage underneath

Question 4

Larynx blood supply

Answer 4

• common carotid
• external carotid
• superior thyroid
• superior laryngeal
• subclavian
• thyrocervical trunk
• inferior thyroid
• inferior laryngeal

Question 5

Innervation of larynx

Answer 5

▪️vagus nerve X
-superior laryngeal- sensory above vocal folds (internal/external)
-recurrent laryngeal-sensory below vocal folds (RRL hooks underneath right subclavian artery then ascends upwards to larynx, LRL hooks under arch of aorta)
▪️R and L RL supply intrinsic muscles of larynx expect for cricothyroid muscles which are supplied by ESL