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English: Principal fissures and lobes of the cerebrum viewed laterally. Principal lobes of the cerebrum viewed laterally. Figure 728 from Gray's Anatomy. 4 lines note sulci as follows top center: Central sulcus; top right: Parieto-occipital sulcus; down left: Lateral sulcus; down right:Preoccipital notch
The cerebrum is divided by the medial longitudinal fissure into two cerebral hemispheres, the right and the left. The cerebrum is contralaterally organized, i.e., the right hemisphere controls and processes signals (predominantly) from the left side of the body, while the left hemisphere controls and processes signals (predominantly) from the ...
The brain is seen from the right side, the front of the brain (above the eyes) is to the right: 14:22, 9 July 2007: 313 × 286 (16 KB) CrazyPhunk: Reverted to earlier revision: 14:21, 9 July 2007: 313 × 286 (17 KB) CrazyPhunk {{Information |Description={{Inkscape}} Diagram showing the lobes of the human cerebral cortex and the cerebellum (blue ...
Cerebral peduncle. Crus cerebri; Mesencephalic cranial nerve nuclei. Oculomotor nucleus (III) Edinger-Westphal nucleus; Trochlear nucleus (IV) Mesencephalic duct (cerebral aqueduct, aqueduct of Sylvius)
The frontal lobe is located at the front of each cerebral hemisphere and positioned in front of the parietal lobe and above and in front of the temporal lobe.It is separated from the parietal lobe by a space between tissues called the central sulcus, and from the temporal lobe by a deep fold called the lateral sulcus, also called the Sylvian fissure.
The external capsule is a route for cholinergic fibers from the basal forebrain to the cerebral cortex. The putamen separates the external capsule from the internal capsule medially and the claustrum separates it from the extreme capsule laterally.
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.
Colors refer to early embryo: Red=right side, blue=left side, black=dorsal, white=ventral. The axial twist theory was designed to explain how the pattern of contralateral organization, [ 10 ] decussations and chiasmas develops, and why this pattern is so evolutionarily stable, [ 25 ] having no known exceptions throughout the 500 million years ...