The field is familiar with the five conditions of collective impact, but what are the... Update: The Spanish-language version of this article, Encauzamiento del cambio: cÃ³mo lograr que el impacto colectivo funcione, is now added to this page for download.
The tetanus toxin affects the site of interaction between the nerve and the muscle that it stimulates.This region is called the neuromuscular junction.The tetanus toxin amplifies the chemical signal from the nerve to the muscle, which causes the muscles to tighten up in a continuous (tetanic or tonic) contraction or spasm.This results in either localized or generalized muscle spasms.he tetanus toxin amplifies the chemical signal from the nerve to the muscle, which causes the muscles to tighten up in a continuous (tetanic or tonic) contraction or spasm. This results in either localized or generalized muscle spasms.
A neuromuscular junction (sometimes called a myoneural junction) is a junction between nerve and muscle; it is a chemical synapse formed by the contact between the presynaptic terminal of a motor neuron and the postsynaptic membrane of a muscle fiber.he neuromuscular junction differs from chemical synapses between neurons. Presynaptic motor axons stop 30 nanometers from the sarcolemma, the cell membrane of a muscle cell. This 30-nanometer space forms the synaptic cleft through which signalling molecules are released.