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- Created by: hattie townsend
- Created on: 08-03-16 19:25
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- B1.2 - Nerves and Hormones
- The Nervous System
- Allows you to react to surroundings and coordinate your behaviour
- It consists of: The brain, spinal cord, nerves and receptors
- Effectors are either muscles or glands
- Muscles react by contracting, glands react by secreting chemical substances
- Receptor, Sensory Neurone, Relay Neurone, Brain/Spine, Motor Neurone, Effector
- Types of Receptor
- Detect stimuli (changes in environment).
- Eyes - Light, Ears - Sound, Nose & Tongue - Smell and Taste, Skin - Touch, Pressure, Pain, Temp
- The information about changes in your environment follows a pathway: SRSRMER
- Types of Neurone
- Specially adapted cells that carry electric signals (nerve impulses)
- Sensory neurone carry to the CNS
- Motor neurones carry from CNS to effector
- Relay neurones are in the CNS
- The Nervous System
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