What are the branches of the ophthalmic artery?
The Terminal Branches = There are two terminal branches of the ophthalmic artery. The supratrochlear (frontal) artery and the dorsal nasal artery. Both of these vessels exit the orbit medially and supply the forehead and scalp.
Where is the lacrimal artery in the eye?
The lacrimal artery travels along the upper border of the lateral rectus muscle with the lacrimal nerve to supply the lacrimal gland as well as the eyelids and conjunctiva.
What does the ophthalmic artery branch off?
Anatomical terminology The ophthalmic artery (OA) is the first branch of the internal carotid artery distal to the cavernous sinus. Branches of the OA supply all the structures in the orbit as well as some structures in the nose, face and meninges.
What artery supplies ophthalmic artery?
Anatomy of the Vascular Supply. The ophthalmic artery (OA), which is the first branch of the internal carotid artery, provides the vast majority of the ocular blood supply (Fig. 1). The OA enters the orbit through the optic canal, and in most individuals, runs inferolaterally to the optic nerve.
What are the three terminal branches of the ophthalmic artery?
The terminal branches of the ophthalmic artery establish extensive anastomoses with branches of the facial, maxillary and superficial temporal arteries, all of which arise from the external carotid artery. Thereby, the ophthalmic artery establishes a connection between the internal and external carotid artery systems.
What is Infraorbital artery a branch of?
Infraorbital artery (IOA) is the branch of the maxillary artery. It appears in pterygopalatone fossa as a branch of third part of maxillary artery. It enters the orbit through inferior orbital fissure traveling anteriorly through infraorbital groove and infraorbital canal.
What is artery in the eye?
The main artery supplying blood to the eye is the ophthalmic artery; when it is blocked, it produces the most damage. A blockage in the main artery in the retina is called central retinal artery occlusion (CRAO), which often results in severe loss of vision.
What major branch of the trigeminal nerve goes to the eye?
The ophthalmic nerve (CNV1) is a terminal branch of the trigeminal nerve (along with the maxillary and mandibular nerves). It provides sensory innervation to the skin, mucous membranes and sinuses of the upper face and scalp.
Which branch of ophthalmic artery is an end artery?
central retinal artery
The central retinal artery is the most important branch of the ophthalmic artery because it is a so-called end artery, meaning that it is the only artery that supplies a given tissue, with no collateral circulation. Occlusion of an end artery results in a rapid ischemia and subsequent infarction.
What is the maxillary artery a branch of?
external carotid artery
The maxillary artery is a branch of the external carotid artery and supplies many structures on the face. The maxillary artery arises posterior to the mandibular neck, traverses the parotid gland, and passes forward between the sphenomandibular ligament and ramus of the mandible.
What is mental artery a branch of?
The mental artery is a terminal branch of the inferior alveolar artery arising from the maxillary artery. It often communicates with the submental and inferior labial arteries branching off the facial artery.
What is the function of infraorbital artery?
It supplies the lower eyelid and lacrimal sac, and it anastomoses with the angular artery and the dorsonasal artery. While in the infraorbital canal, the infraorbital artery supplies the inferior rectus and inferior oblique muscles and sends some branches to the maxillary sinus and to the teeth of the upper jaw.
Which is the largest branch of the lacrimal artery?
Lacrimal artery. The lacrimal artery is an artery that arises close to the optic foramen, and is one of the largest branches derived from the ophthalmic artery. Not infrequently it is given off before the artery enters the orbit . It accompanies the lacrimal nerve along the upper border of the lateral rectus and supplies the lacrimal gland .
Which is a branch of the ophthalmic artery?
Branches of the ophthalmic artery supply: 1 Frontal belly of the occipitofrontalis muscle. 2 Inferior oblique muscle. 3 Inferior rectus muscle. 4 Lacrimal gland. 5 Lateral rectus muscle. 6 (more items)
Which is part of the eye supply the lacrimal gland?
The lacrimal artery mainly supplies the lacrimal gland, but also the eyelids, conjunctiva and parts of the dura mater. Supraorbital artery: arises after the ophthalmic artery crosses over the optic nerve. The supraorbital artery exits the orbit through the supraorbital foramen, accompanied by the supraorbital nerve and vein.
Where does the lacrimal artery travel back to?
Lacrimal artery. The recurrent branch of the artery travels back through the superior orbital fissure to supply the dura mater of the middle cranial fossa where it connects to a branch of the middle meningeal artery.