THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The ophthalmic artery also gives off the inferior and superior muscular vessels that supply the extraocular muscles. The supraorbital artery is also a branch of the ophthalmic artery and passes through the supraorbital foramen to supply the skin of the forehead and Levator palpebrae muscle.

Detailed explanation-2: -The supraorbital artery stems from the ophthalmic artery in the superomedial aspect of the orbit. It leaves the orbit through the supraorbital groove and emerges onto the forehead. It terminates by dividing into two terminal branches; superficial and deep.

Detailed explanation-3: -Along with the supraorbital branch of the ophthalmic artery, the supratrochlear artery provides an abundant blood supply for the forehead and glabella. Upon leaving the orbit, the supratrochlear artery gives off two small vessels named the superficial and deep branches.

Detailed explanation-4: -The arterial input to the eye is provided by several branches from the ophthalmic artery, which is derived from the internal carotid artery in most mammals (Fig 2.2, left). These branches include the central retinal artery, the short and long posterior ciliary arteries, and the anterior ciliary arteries.