L19

Question 1

Features of nerve-nerve synapse

Answer 1

-Many tiny synapses on post-synaptic cell
-AP in an individual neuron rarely brings partner to threshold
-Can be both excitatory (EPSP’s) and inhibitory (IPSP’s) and many neurotransmitters used

Question 2

Features of Nerve-Skeletal Muscle synapses

Answer 2

-Large synapses where each muscle fibre receives input from only one neuron.
-AP in neuron likely to reach muscle fibre threshold
-Only excitatory inputs (ACh)