Corpus: Medial palpebral artery: Unterschied zwischen den Versionen

Aktuelle Version vom 31. Juli 2024, 15:47 Uhr

Definition

The medial palpebral arteries are two arteries in the orbit (eye socket) that are branches of the ophthalmic artery.

Classification

There are two medial palpebral arteries:

Superior medial palpebral artery (branch): Located at the upper edge of the eyelid
Inferior medial palpebral artery (branch): Located at the lower lid margin

Course

The medial palpebral arteries originate opposite the trochlea of the superior oblique muscle from the ophthalmic artery. They leave the orbit and run in the subcutaneous tissue of the free lid margin between the orbicularis oculi muscle and the tarsus (lid cartilage) from medial to lateral.

The superior medial palpebral artery anastomoses at the lateral orbital rim with the zygomaticoorbital branch of the superficial temporal artery and with the lateral superior palpebral artery from the lacrimal artery. Together with the latter, it forms the superior palpebral arch.

The inferior medial palpebral artery anastomoses at the lateral orbital rim with the lateral inferior palpebral artery from the lacrimal artery and with the transverse facial artery. Medially, it forms an anastomosis with the angular artery. The anastomosis with the lateral inferior palpebral artery is known as the inferior palpebral arch.

Function

The medial palpebral arteries supply the eyelids and the conjunctiva with arterial blood.

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 ==Course==
-The medial palpebral arteries originate opposite the [[Corpus:Trochlea|trochlea]] of the [[Coprus: Superior oblique muscle|superior oblique muscle]] from the [[Corpus:Ophthalmic artery|ophthalmic artery]]. They leave the orbit and run in the subcutaneous tissue of the free lid margin between the [[Corpus:Orbicularis oculi muscle|orbicularis oculi muscle]] and the tarsus (lid cartilage) from medial to lateral.
+The medial palpebral arteries originate opposite the [[Corpus:Trochlea|trochlea]] of the [[Corpus: Superior oblique muscle|superior oblique muscle]] from the [[Corpus:Ophthalmic artery|ophthalmic artery]]. They leave the orbit and run in the subcutaneous tissue of the free lid margin between the [[Corpus:Orbicularis oculi muscle|orbicularis oculi muscle]] and the tarsus (lid cartilage) from medial to lateral.
 The superior medial palpebral artery anastomoses at the lateral orbital rim with the zygomaticoorbital branch of the [[Corpus:Superficial temporal artery|superficial temporal artery]] and with the lateral superior palpebral artery from the [[Corpus:Lacrimal artery|lacrimal artery]]. Together with the latter, it forms the superior palpebral arch.
-The inferior medial palpebral artery anastomoses at the lateral orbital rim with the lateral inferior palpebral artery from the lacrimal artery and with the [[Coprus: Transverse facial artery|transverse facial artery]]. Medially, it forms an anastomosis with the [[Coprus: Angular artery|angular artery]]. The anastomosis with the lateral inferior palpebral artery is known as the inferior palpebral arch.
+The inferior medial palpebral artery anastomoses at the lateral orbital rim with the lateral inferior palpebral artery from the lacrimal artery and with the [[Corpus: Transverse facial artery|transverse facial artery]]. Medially, it forms an anastomosis with the [[Corpus: Angular artery|angular artery]]. The anastomosis with the lateral inferior palpebral artery is known as the inferior palpebral arch.
 ==Function==
-The medial palpebral arteries supply the eyelids and the [[Coprus: Conjunctiva|conjunctiva]] with arterial blood.
+The medial palpebral arteries supply the eyelids and the [[Corpus: Conjunctiva|conjunctiva]] with arterial blood.
 [[Kategorie:Corpus]]
 [[Kategorie:Artery]]
 [[Kategorie:Head]]