Question

2 fibers that make up the inter-arytenoid muscle?

2 fibers that make up the inter-arytenoid muscle?

Homework Answers

Answer #1
  • Extrafusal fibers were oxidative type 1 and glycolytic type II A and II X.
  • Intrafusal fibers (myosin spindle) were identified by the presence of tonic and neonatal myosin.
  • Due to presence of these fibers, it prove that interarytenoid muscle are phenotypically similar to skeletal muscle in the limb.
  • Function of interarytenoid muscle is to hold the vocal cord in closed position. Interarytenoid muscle from one side attach to interarytenoid muscle on other side.
  • Interarytenoid muscle is located between arytenoid cartilage in the midline at the back of glottis.
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