Neuronal communication key words

Across

• 1. the site of transmission of electric nerve impulses between two nerve cells (7)
• 2. the effect of several excitatory post-synaptic potentials combining together to increase membrane depolarisation until it reaches threshold (9)
• 4. ion that causes vesicles to move towards the presynaptic membrane (7)
• 5. appendages that receive communications from other cells (9)
• 7. ions that cause hyper polarisation (9)
• 9. insulating layer around axons (6, 6)
• 10. converts a physical stimulus (kinetic energy) into an electrical impulse (10)