Medial palpebral arteries

  (Redirected from Inferior palpebral artery)

The medial palpebral arteries (internal palpebral arteries) are arteries of the head. They are two in number, superior and inferior, that arise from the ophthalmic artery near its terminal branches. The arteries branch from the ophthalmic artery in the superomedial orbit near the trochlea of the superior oblique muscle.

Medial palpebral arteries
Gray514.png
The ophthalmic artery and its branches. (Medial palpebral labeled at center top.)
Details
Sourceophthalmic artery
Branchessuperior palpebral arch
inferior palpebral arch
Supplieseyelids
Identifiers
Latinarteriae palpebrales mediales
TAA12.2.06.044
FMA70785
Anatomical terminology

CourseEdit

They leave the orbit to encircle the eyelids near their free margins, forming a superior and an inferior arch, which lie between the orbicularis oculi and the tarsi.

The superior palpebral arch anastomoses, at the lateral angle of the orbit, with the zygomaticoörbital branch of the temporal artery and with the upper of the two lateral palpebral branches from the lacrimal artery.

The inferior palpebral arch anastomoses, at the lateral angle of the orbit, with the lower of the two lateral palpebral branches from the lacrimal and with the transverse facial artery, and, at the medial part of the lid, with a branch from the angular artery.

From this last anastomoses a branch passes to the nasolacrimal duct, ramifying in its mucous membrane, as far as the inferior meatus of the nasal cavity.

Additional imagesEdit

ReferencesEdit

This article incorporates text in the public domain from page 570 of the 20th edition of Gray's Anatomy (1918)