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The cerebral arteries describe three main pairs of arteries and their branches, which perfuse the cerebrum of the brain. The three main arteries are the: Anterior cerebral artery (ACA), which supplies blood to the medial portion of the brain, including the superior parts of the frontal and anterior parietal lobes [1]
The orbitofrontal artery is one of the branches of the anterior cerebral artery, that supplies blood to the cerebrum. [1] The orbitofrontal artery is usually the first cortical branch of the A2 segment, arising from the subcallosal segment to supply the inferior and inferomedial surfaces of the frontal lobe including the gyri recti. [2]
The anterior cerebral artery supplies a part of the frontal lobe, specifically its medial surface and the upper border. It also supplies the front four–fifths of the corpus callosum, and provides blood to deep structures such as the anterior limb of the internal capsule, part of the caudate nucleus, and the anterior part of the globus ...
Cerebral circulation is the movement of blood through a network of cerebral arteries and veins supplying the brain. The rate of cerebral blood flow in an adult human is typically 750 milliliters per minute , or about 15% of cardiac output .
The anterior cerebral artery forms the anterolateral portion of the circle of Willis, while the middle cerebral artery does not contribute to the circle. The right and left posterior cerebral arteries arise from the basilar artery, which is formed by the left and right vertebral arteries. The vertebral arteries arise from the subclavian arteries.
There is a precise somatotopic representation of the different body parts in the primary motor cortex, with the leg area located medially (close to the midline), and the head and face area located laterally on the convex side of the cerebral hemisphere (cortical homunculus). The arm and hand motor area is the largest and occupies the part of ...
The internal carotid artery; The origin of the anterior choroidal artery; The origin of the posterior communicating artery; Cistern of lateral cerebral fossa. It is situated in the fissure between the frontal and temporal lobes. It contains: The middle cerebral artery; The middle cerebral veins; The fronto-orbital veins; Collaterals to the ...
Middle cerebral artery; Posterior cerebral artery; Anterior cerebral artery; Vertebral artery; Basilar artery; Circle of Willis (arterial system) Blood–brain barrier; Glymphatic system; Venous systems; Circumventricular organs