Central nervous system acts as control center of our whole body.it comprises brain and spinal cord.
Brain
Human brain is enclosed in boney skull called cranium and consists of billions of inter neurons.it is divided into the following parts
1. Forebrain
Forebrain is the largest part of brain.it has three main parts cerebrum thalamus and hypothalamus. Cerebrum control many actions like thinking, feeling, emotions etc. Inside cerebrum there is small structure called thalamus it control sensory functions. Hypothalamus lies at the base of thalamus.
2. Midbrain
Midbrain is the small part of the brain which is present below the cerebrum. It receives information from sense organ
3. Hindbrain
Hindbrain has three main parts cerebellum, pons and medulla oblongata. Cerebellum lies under the back part of the cerebrum. Pons is an oval structure present below the Midbrain Medulla oblongata form the posterior part of the brain where it is connected with spinal cord
Spinal cord
Spinal cord is an extension of medulla oblongata .spinal cord creates a link between brain and different body parts .it control some reflex actions