The Nervous System
- Created by: Ruthie0309
- Created on: 03-12-18 09:19
View mindmap
- The Nervous System
- The nervous system reacts to stimuli and coordinates behaviour. The nervous system is made up of different parts
- Effectors and Receptors
- Effectors respond to electrical impulses and bring about a change. Muscles and glands are effectors. They respond in different ways- muscles contract and glands release hormones.
- Receptors are the cells that detect stimuli. Different receptors detect different stimuli. For example, receptors in the ears detect sound.
- Central Nervous System (CNS): This consists of the brain and the spinal cord. The CNS is connected to the body by sensory neurones and motor neurones.
- The CNS is a coordination centre. It receives information from the receptors and then coordinates a response. The response is carried out by effectors.
- Stimulus Receptor-- Sensory Neurone-- CNS-- Motor Neurone-- Effector-- Response--
- The CNS is a coordination centre. It receives information from the receptors and then coordinates a response. The response is carried out by effectors.
- Sensory and Motor Neurones
- Motor Neurones: These carry electrical impulses from the CNS to the effectors.
Comments
No comments have yet been made