The left and right anterior cerebral arteries are connected by the anterior communicating artery.

If stroke occurs prior to the anterior communicating artery it is usually well tolerated secondary to collateral circulation.

The anterior communicating artery.

One common cause of basal forebrain damage is aneurysm of the anterior communicating artery.

The anterior communicating artery connects the two anterior cerebral arteries and could be said to arise from either the left or right side.

The anterior cerebral artery and the anterior communicating artery travel within this cistern.

In human anatomy, the anterior communicating artery is a blood vessel of the brain that connects the left and right anterior cerebral arteries.

The anterior communicating artery connects the two anterior cerebral arteries across the commencement of the longitudinal fissure.

The three pairs of arteries are linked via the anterior communicating artery and the posterior communicating arteries.

In another variation the anterior communicating artery is a large vessel, such that a single internal carotid supplies both anterior cerebral arteries.

Anterior communicating artery: Connects both anterior cerebral arteries, within and along the floor of the cerebral vault.

A1: this segment originates from the internal carotid artery and extends to the anterior communicating artery (AComm).

Anterior communicating artery (arteria communicans anterior)

Medial striate artery is a branch of anterior cerebral artery, rostral to the anterior communicating arteries.

An etiology of vascular origin is an aneurysm of the anterior communicating artery which arise superior to the chiasm, enlarge, and compress it from above.

Confabulation can also occur as a result of damage to the anterior communicating artery (ACoA), in the Circle of Willis.

Blockages to the proximal (A1) segment of the vessel produce only minor deficits due to the collateral blood flow from the opposite hemisphere via the anterior communicating artery.

Extensive subarachnoid hemmorhaging consistent with rupture of the anterior communicating artery rendered him unconscious, with a subsequent increase in intracranial pressure causing the brain stem's herniation."

Aneurysms of the anterior communicating artery are the most common circle of Willis aneurysm and can cause visual field defects such as bitemporal hemianopsia, psychopathology and frontal lobe pathology.

Aneurysms of the posterior communicating artery are the third most common circle of Willis aneurysm (the most common are anterior communicating artery aneurysms) and can lead to oculomotor nerve palsy.

While most aneurysms occur in an isolated form, the occurrence of berry aneurysms of the anterior communicating artery of the circle of Willis is associated with autosomal dominant polycystic kidney disease (ADPKD).

In particular, damage can be localized to the ventromedial frontal lobes and other structures fed by the anterior communicating artery (ACoA), including the basal forebrain, septum, fornix, cingulate gyrus, cingulum, anterior hypothalamus, and head of the caudate nucleus.

The anterior optic nerve is supplied by the short posterior ciliary artery and choroidal circulation, while the retrobulbar optic nerve is supplied intraorbitally by a pial plexus, which arises from the ophthalmic artery, internal carotid artery, anterior cerebral artery, and anterior communicating arteries.