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Each of these parts controls different activities of the body.

Cerebrum is the largest part of the human brain. It has many
grooves and folds on its surface. It is the part that controls our

ability to think, remember, decide, learn, dream and feel. It
also receives and interprets information from our sense

organs.
Cerebellum controls and coordinates our voluntary

movements like walking, painting, dancing, running etc. It
coordinates muscular activities and is also responsible for

balancing the body.
Medulla or brain stem joins the spinal cord to the brain. It

controls all our involuntary actions like breathing, heartbeat

and muscle movements in the digestive system.
The Spinal CordSpinal Cord
The
The Spinal Cord
The spinal cord is a thick cord of nervous tissues. It is

protected by the vertebrae of the vertebral column. Messages
travel from the brain to the spinal cord and then to all the parts
of our body. Similarly, incoming messages enter the spinal

cord from all parts of our body and then travel up to our brain.

Vertebral column

The
The NervesNervesNerves
The
Nerves are the bundles of nerve cells that spread throughout the body. All the
parts of the nervous system contain certain cells called nerve cells or neurons .
NERVE CELL – STRUCTURE AND TYPES

Each nerve cell has a cell body . Small fibres called dendrites come out from the

cell body. A long fibre called axon extends from one end of the cell body.
Nerves carry signals from the brain to the spinal cord and vice versa.

Axon Axon terminal

Cell body

Schwann cell

Myeling sheath
Nucleus
Nerve Cell

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