NEET PG DENTAL EXAM

Detailed explanation-1: -Elevated ridges of tissue, called gyri (singular: gyrus), separated by shallow groves called sulci (singular: sulcus) mark nearly the entire surface of the cerebral hemispheres. Deeper groves, called fissures, separate large regions of the brain.

Detailed explanation-2: -A gyrus is a ridge-like elevation found on the surface of the cerebral cortex. Gyri are surrounded by depressions known as sulci, and together they form the iconic folded surface of the brain. Gyri are made up of the gray matter of the cerebral cortex, which mainly consists of nerve cell bodies and dendrites.

Detailed explanation-3: -A fissure or groove that separates the two hemispheres is called the great longitudinal fissure. The two sides of the brain are joined at the bottom by the corpus callosum. The corpus callosum connects the two halves of the brain and delivers messages from one half of the brain to the other.

Detailed explanation-4: -Ventricles and Cerebrospinal Fluid A series of interconnected, fluid-filled cavities are found within the brain. These cavities are the ventricles of the brain, and the fluid is cerebrospinal fluid (CSF).