PATHOLOGY

Detailed explanation-1: -The three main parts of the human brain are the cerebrum, cerebellum, and brainstem. The cerebrum is divided into the right and left hemispheres and is the largest part of the brain.

Detailed explanation-2: -Weighing about 3 pounds in the average adult, the brain is about 60% fat. The remaining 40% is a combination of water, protein, carbohydrates and salts. The brain itself is a not a muscle. It contains blood vessels and nerves, including neurons and glial cells.

Detailed explanation-3: -The brainstem is the structure that connects the cerebrum of the brain to the spinal cord and cerebellum. It is composed of three sections in descending order: the midbrain, pons, and medulla oblongata.