Homeostasis & ResponseDeep Dive

Synapses: The Key to Communication

Part of Nervous SystemGCSE Biology

This deep dive covers Synapses: The Key to Communication within Nervous System for GCSE Biology. Topic 2: Nervous System It is section 3 of 14 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 3 of 14

Practice

15 questions

Recall

20 flashcards

Synapses: The Key to Communication

Synapses are tiny gaps between two neurones that allow them to communicate with each other. Neurotransmitters are chemical messengers released by the sending neurone, which bind to receptors on the receiving neurone.

There are many types of neurotransmitters, including:

  • Norepinephrine: involved in attention and arousal
  • Dopamine: involved in reward and motivation
  • Acetylcholine: involved in muscle contraction and memory formation

Keep building this topic

Read this section alongside the surrounding pages in Nervous System. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Nervous System

What are the two organs that make up the central nervous system (CNS)?

  • A. Heart and lungs
  • B. Brain and spinal cord
  • C. Sensory neurones and motor neurones
  • D. Eyes and ears
1 markfoundation

Explain how a signal is transmitted across a synapse from one neurone to the next.

3 marksstandard

Quick Recall Flashcards

How do neurons transmit information?
Neurons transmit information as electrical impulses that travel along the nerve fiber at high speed.
What is the main function of the nervous system?
To detect stimuli from the environment and coordinate appropriate responses to maintain homeostasis and enable survival.

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