Mostly sunny. Patchy fog in the outer west early this morning. Slight (20%) chance of rain in the outer west later tonight. Near zero chance of rain elsewhere. Winds north to northwesterly 15 to 25 km/h becoming northerly 25 to 35 km/h in the morning.
Ophthalmic artery (OA) is the first intracranial branch of internal carotid artery (ICA). It arises soon after ICA emerges from cavernous sinus, follows a short intracranial course, transverses the optic canal, and enters the orbit.
The blood supply of the scalp is via five pairs of arteries, three from the external carotid and two from the internal carotid: internal carotid the supratrochlear artery to the midline forehead. The supratrochlear artery is a branch of the ophthalmic branch of the internal carotid artery. the supraorbital artery to the lateral forehead and scalp as far up as the vertex.