Receptor and Regulation 2.5

• What is a synapse?

  A small gap at the end of a neuron that allows a signal to pass from one neuron to the next
• What happens to your body when your bodies too cold?

  Hairs stand up (hair erector muscles contract), sweat glands stop making sweat - blood vessels get narrower - so less blood gets near to the surface. This reduces heat loss by radiation