GROSS ANATOMY

GROSS ANATOMY

CRANIAL NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The elevated ridges on the surface of the cerebral cortex are known as ____ while the shallow grooves are termed ____
A
sulci; gyri
B
gyri; sulci
C
ganglia; gyri
D
sulci; ganglia
Explanation: 

Detailed explanation-1: -Deep median fissure divides the cerebrum into two equal cerebral hemispheres. The thin layers of cells cover the cerebral hemispheres called cerebral cortex. The elevated ridges of tissue on the surface of the cerebral cortex are known as gyri while the shallow grooves are termed sulci.

Detailed explanation-2: -The surface of the cerebrum is imprinted with numerous ridges or convolutions called gyri. These gyri are separated by grooves; the shallow ones are called sulci and very deep ones are called fissures. The sulci serve as boundaries for the lobes of the cerebrum, the frontal, parietal, occipital, and temporal lobes.

Detailed explanation-3: -In neuroanatomy, a gyrus (pl. gyri) is a ridge on the cerebral cortex. It is generally surrounded by one or more sulci (depressions or furrows; sg. sulcus). Gyri and sulci create the folded appearance of the brain in humans and other mammals.

Detailed explanation-4: -A gyrus (plural: gyri) is a ridge on the surface of the brain. Each ridge is surrounded by fissures known as sulci (singular: sulcus). Gyri are unique structures that have an important evolutionary function; they increase the surface area of the brain up to an impressive 2000 centimeters squared.

Detailed explanation-5: -The folds of a brain are called gyri and the grooves are called sulci. These morphological features are produced by the folding of the cortex, the part of our brain responsible for higher cognitive processes like memories, language and consciousness.

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