NEET PG DENTAL EXAM

BRAIN

CEREBRUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are the very deep grooves on the surface of the brain?
A
Sulci
B
Fissures
C
Gyri
D
Hippocampus
Explanation: 

Detailed explanation-1: -In neuroanatomy, a sulcus (Latin: “furrow", pl. sulci) is a depression or groove in the cerebral cortex. It surrounds a gyrus (pl. gyri), creating the characteristic folded appearance of the brain in humans and other mammals.

Detailed explanation-2: -A fissure is a deeper grove and is often used interchangeably with sulcus. The cerebrum is divided into a left and right hemisphere by a longitudinal fissure that goes by many different names: longitudinal fissure, cerebral fissure, median longitudinal fissure, interhemispheric fissure.

Detailed explanation-3: -A sulcus (plural: sulci) is another name for a groove in the cerebral cortex. Each gyrus is surrounded by sulci and together, the gyri and sulci help to increase the surface area of the cerebral cortex and form brain divisions.

Detailed explanation-4: -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.

There is 1 question to complete.