What is M2 artery?

Description. The insular part (M2 segment) of the middle cerebral artery extends anteriorly on the insula, this segment in known as the insular segment. It is also known as the Sylvian segment when the opercular segments are included.

Where is M2 in the brain?

M2 (insular) segment begins at the point of MCA bifurcation and consists of a superior and inferior trunk. This segment starts with the genu of MCA at the level of limen insulae and then travels along the surface of the insula. It terminates at the level of the circular sulcus of insula.

What is M2 occlusion?

Background: Occlusions of the M2 segment of the middle cerebral artery may cause significant clinical effects, especially when occurring in the dominant cerebral hemisphere, yet endovascular treatment of these lesions remains controversial.

What is M1 and M2 in the brain?

The M1 segment extends from the ending of the internal carotid artery, perforating the brain up to its division. The M2 segment bifurcates or occasionally trifurcates. It travels laterally to the Sylvian fissure, and its branches end in the cerebral cortex.

What is a M2 stroke?

Sylvian (M2) Segment. Middle Cerebral Artery. Segment divides into superior and inferior divisions which can be a site for an embolus to lodge. Branches supply: Temporal Lobe and Insular Cortex (sensory language area of Wernicke)

How many M2 branches are there?

It emerges from the Sylvian fissure and passes over the anterior transverse temporal gyrus and usually divides into two branches. One of the branches supplies the angular gyrus while the other supplies the supramarginal gyrus, posterior superior temporal gyrus, and the parietooccipital arcus (sulcus).

What is an M2 stroke?

The MCA-M2 segment was defined as the segment extending from the bifurcation/trifurcation of the MCA to the top of the Sylvian fissure to further division [10].

What parts are distinguished in Arteria cerebri media?

Circle of Willis.

What artery supplies Wernicke’s area?

the middle cerebral artery
Wernicke area receives its vascular supply from the inferior temporal branch of the middle cerebral artery.

What is a left middle cerebral artery stroke?

A middle cerebral artery stroke is an interruption of blood flow in the middle cerebral artery (MCA). Strokes happen when a blood vessel is blocked or ruptured. A stroke is always a medical emergency. It can cause permanent brain damage1 because brain cells die if they don’t get a constant supply of oxygenated blood.