Median cricothyroid ligament

Ligamentum cricothyreoideum medianum

  • Latin synonym: Ligamentum cricothyroideum medianum
  • Synonym: Central part of cricothyroid membrane

Definition

Antoine Micheau

The median cricothyroid ligament (central part of cricothyroid membrane) is the anterior part of the conus elasticus.

It is thick and strong, narrow above and broad below. It connects together the front parts of the contiguous margins of the thyroid and cricoid cartilages. It is overlapped on either side by the cricothyreoideus, but is subcutaneous between these muscles; it is crossed horizontally by a small anastomotic arterial arch, formed by the junction of the two cricothyroid arteries, branches of which pierce it. 

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