GENERAL HISTOLOGY

Detailed explanation-1: -The surface of the cerebrum contains billions of neurons and glia that together form the cerebral cortex. The cerebral cortex appears grayish brown in color and is called the “gray matter.” The surface of the brain appears wrinkled.

Detailed explanation-2: -In normal human brains, large grooves, called fissures; small ones, called sulci, and outward folds, called gyri, follow a standard plan from person to person.

Detailed explanation-3: -Beginning in utero and up until the first two years of age, the cortex of the brain expands. As this occurs, the brain will bend or buckle, creating folds.

Detailed explanation-4: -Cerebral cortex. Cortex cerebri. Synonyms: Brain cortex, Cortical grey matter. The cerebral cortex (cortex of the brain) is the outer grey matter layer that completely covers the surface of the two cerebral hemispheres. It is about 2 to 4 mm thick and contains an aggregation of nerve cell bodies.

Detailed explanation-5: -The cerebral cortex is composed of four lobes: frontal lobe, parietal lobe, temporal lobe, and occipital lobe. The major function of the cerebrum is to control the voluntary muscular movements of the body. The cerebral cortex is mainly involved in the consciousness.