Nervous System GCSE AQA

A junction between 2 neurones.

• Synapse
• Receptor
• Sensory neurone
• Motor neurone

Specialised cells that detect stimuli.

• Receptor
• Sensory neurone
• Motor neurone
• Reflex

This carries the nerve impulse from the receptor to the central nervous system.

• Sensory neurone
• Motor neurone
• Reflex
• Relay neurone

Carries the nerve impulse from the central nervous system to an effector.

• Motor neurone
• Reflex
• Relay neurone
• Stimulus

An automatic response to a stimulus that does not involve conscious thought.

• Reflex
• Relay neurone
• Stimulus
• Effectors

Connects a motor and a sensory neurone in the central nervous system and is involved in a reflex arc.

• Relay neurone
• Stimulus
• Effectors
• Central nervous system

Changes in the environment.

• Stimulus
• Effectors
• Central nervous system
• Nerve

Carry out the response and are either muscles or glands.

• Effectors
• Central nervous system
• Nerve
• Nerve impulse

The brain and the spinal cord.

• Central nervous system
• Nerve
• Nerve impulse
• Neurone

A bundle of neurones.

• Nerve
• Nerve impulse
• Neurone
• Synapse