As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.s you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
What is the bump in the cortex called? The bump in the cortex is called the gyrus. It is the convex fold in the surface of the brain and surrounded by one or more sulci.
*Gyrus (gyri)-is a ridge on the cerebral cortex. Folds on the brain material. Many ridges called convolutions, or gyri, or gyrus, separated by grooves, mark the cerebrum 's surface. *Sulcus (sulci)- shallow grooves on the brain.Generally, a shallow to somewhat deep groove is called a sulcus, or sulci, and a very deep groove is called a fissure.Posted by Saketh Raghavan (student) on 15/3/13.Gyrus (gyri)-is a ridge on the cerebral cortex. Folds on the brain material. Many ridges called convolutions, or gyri, or gyrus, separated by grooves, mark the cerebrum 's surface. *Sulcus (sulci)- shallow grooves on the brain.