Central Nervous System (CNS) and Spinal Cord


Central Nervous System

The central nervous system is also called the cerebrospinal nervous system, where ‘cerebro’ refers to the brain and ‘spinal’ refers to the spinal cord. The brain and the spinal cord together weave a wide network of nerves that work day and night and keep the body functioning. The brain is said to be the main control centre of all the other organs and related stimuli. The spinal cord though being a part of skeleton is a plexus of nerves that control the entire skeletal and muscular system. The work of CNS is to direct incoming messages to the motor neurons that are connected to the part of body which will respond to a stimulus.

Spinal Cord

The spinal cord connects the whole body to the brain. It is the continuation of the medulla oblongata through the backbone. Several nerve fibres branch out from the spinal cord to all parts of the body. As many as 31 pairs of nerves arise from the spinal cord. Messages travel to and between the brain and the rest of the body through the spinal cord and its nerves. It also controls the reflex action.

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