Origin
Arytenoid cartilage.
Insertion
Into the opposing arytenoid cartilage.
Blood supply
Superior and inferior laryngeal arteries.
Nerve supply
Vagus nerve.
Action
It helps to close the opening of the larynx while swallowing or coughing.
Disease/Injury
Laryngeal fracture or injury can cause direct trauma to it and the muscle may get injured.
Muscle Exercise
NA
Interesting fact
NA
