2.83 Central nervous system

recall that the central nervous system consists of the brain and spinal cord and is linked to sense organs by nerves

Receptor --> coordinator --> effector

• The central nervous system is made up of your brain and spinal cord which are made of delicate nervous tissue. The brain is protected by the skull and the spine by the backbone
• The central nervous system controls your actions and it is connected to different parts of the body by nerves.
• These nerves that connect the CNS to the body are made up of nerve cells or neurons
• Sense organs are our receptors and they send messages to the CNS telling it what has happened. These messages are sent along the sensory neurons
• Muscles and glands are our effectors and the CNS sends them a message that tells the muscles what to do. The messages are sent along the motor neurons