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Most neurons have a chemical synapse, which is to say that a substance called a neurotransmitter is released from the first neuron (called pre-synaptic) to the next neuron called (post-synaptic). How is the release triggered? When an action potential reaches the terminus (end of the axon) there are specialized calcium channels that are opened (voltage-gated). The calcium bind so the inner membrane and triggers the release of small membrane bound vesicles which spill out their contents of neurotransmitter into the synaptic cleft. The neurotransmitter binds to specific receptors on the post-synaptic membrane and that causes the action potential to propagate on (or for the neurotransmitter to cause an action like a muscle contraction).
What else can I help you with?
Can impulses pass in 2 directions across a synapse?
no
What is the space that impulses jump across by means of a transmitting chemical?
synapse
Which of the following helps carry nerve impulses across the synapse?
neurotransmitter carries the nerve impulses from neuron to neuron across a synapse
Neural transmission across a mammalian synaptic gap is accomplished by?
impulses causing the release of a chemical signal and its diffusion across the synapse.
How are messages carried through your nerves?
Nerve cells send electrical impulses called synapse. These electrical stimulations travel from cell to cell, up to the brain and back. Nerves also produce different types of chemicals to manipulate the synapse.
What is the area between neurons across which nerve impulses travel?
no, synapse. node of ranvier is between axon and dendrites
Are motor neurons an electrical synapse?
no,motor neurons are not electrical synapse but are normal nerve cells.they help in transmission of electrical impulses from the site of stimulus towards the spinal cord.the impulses have to travel and cross certain spaces or junctions between two consecutive nerves,the axon bulb of one to dendrites of next neuron.
What term is define as the site where two nerves come together?
The term synapse is the site where two nerves come together.
A synapse is the space between what?
Usually from the axon of one nerve to the dendrite of another. The axon sends impulses away from the nerve body, and the dendrite receives impulses from other nerves.
What is the space between two adjacent nerve cells?
its known as the synapse. Through the synapse is where impulses travel from brain cell to brain cell.
What is the small space between neurons where impulses pass?
Synapse
What do you call the Space between two Nerves?
A synapse.
