Internal palpebral artery
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At the time the article was created Timothy Croft had no recorded disclosures.View Timothy Croft's current disclosures
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The internal palpebral arteries, or medial palpebral arteries, are branches of the ophthalmic artery, with superior and inferior medial palpebral branches arising opposite the trochlear of the superior oblique muscle.
The internal palpebral arteries enter the superior and inferior eyelids by piercing the orbital septum on either side of the medial palpebral ligament. These form a superior and inferior arch between the tarsal plate and orbicularis oculi muscle. These go on to form the palpebral arcades by anastomosing with the lacrimal artery.
Typically, two arcades are formed , a marginal and peripheral arcade, supplying the marginal and peripheral tarsal plate respectively. Furthermore, structures of the medial canthus are supplied by branches from the internal palpebral arteries.