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Inferior Laryngeal Artery
Cardiovascular System

Inferior Laryngeal Artery

Arteria laryngea inferior

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Quick Facts

Origin: Inferior thyroid artery.

Course: Travels superiorly with the recurrent laryngeal nerve.

Branches: None.

Supplied Structures: Mucous membrane and muscles of the larynx.

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Origin

The inferior laryngeal artery originates from the inferior thyroid artery as it ascends in the neck.

Course

The inferior laryngeal artery travels superiorly on the lateral margin of the trachea with the inferior laryngeal nerve, which is the terminal portion of the recurrent laryngeal nerve. The inferior laryngeal artery enters the larynx at the lower border of the inferior constrictor muscle.

Branches

There are no named branches of the inferior laryngeal artery;, however, it anastomoses with the contralateral artery and the ipsilateral superior laryngeal artery.

Supplied Structures

As the inferior laryngeal artery enters the larynx, it supplies the mucous membrane and the intrinsic muscles of the larynx.

Supplied Structures

As the inferior laryngeal artery enters the larynx, it supplies the mucous membrane and the intrinsic muscles of the larynx.

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ScienceDirect image

When the artery is occluded blood is forced through the collateral vessels, drastically increasing fluid shear stress and triggering an inflammatory response which drives vessel remodeling.

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Complete Anatomy

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