Abstract
Electrophysiological studies of synaptic transmission in mammalian muscles revealed substantial differences between neuromuscular synapses associated with fast versus slow-twitch motor units. Synapses of fast units exhibited much higher tetatic and post-tetanic potentiation of neurotransmitter release than those of slow units. On the other hand, the tetanic potentiation of slow units increased faster as a function of the frequency of activation than that of fast units. These differences suggest a possible specialization of neuromuscular synapses with the type of motor units they are associated with.
| Original language | English |
|---|---|
| Pages (from-to) | 379-382 |
| Number of pages | 4 |
| Journal | Brain Research |
| Volume | 363 |
| Issue number | 2 |
| DOIs | |
| State | Published - 22 Jan 1986 |
Keywords
- fast motor unit
- neurotransmitter release
- post-tetanic potentiation
- slow motor unit
- synaptic transmission
- tetanic potentiation