Which of the following is wrong regarding ophthalmic aery ?
OPHTHALMIC AERY Origin The ophthalmic aery is a branch of the cerebral pa of the internal carotid aery, given off medial to the anterior clinoid process close to the optic canal. Course and relations The aery enters the orbit through the optic canal, lying inferolateral to the optic nerve. Both the aery and nerve lie in a common dural sheath. In the orbit, the aery pierces the dura mater, ascends over the lateral side of the optic nerve, and crosses above the nerve from lateral to medial side along with the nasociliary nerve. It then runs forwards along the medial wall of the orbit between the superior oblique and the medial rectus muscles, and parallel to the nasociliary nerve. It terminates near the medial angle of the eye by dividing into the supratrochlear and dorsal nasal branches. Branches Ophthalmic aery gives following branches : 1. Central aery of retina. 2. Lacrimal aery :- It gives following branches : i) Lateral palpebral branch. ii) Zygomaticotemporal iii) Zygomaticofacial iv) Recurrent meningeal 3. Meningeal 4. Ciliary 5. Anterior ethmoidal 6. Posterior ethmoidal 7. Medial palpebral 8. Supratrochlear 9. Supraorbital 10. Dorsal nasal Ophthalmic aery is the first and most impoant branch. It is an end aery.
Present in dura along with optic nerve
Supplies anterior ethmoidal sinus
Aery to retina is end aery
Leaves orbit through inferior orbital fissure