Question

The junction between two communicating neurons is called a 1._ . The neurons dont physically touch. They are seperated by a synpatic 2._ . As a nerve impulse reaches the axon terminal, 3._ ions promote the release of 4._ which cross the space and bind to postynaptic receptors

A. Calcium
B. Synapse
C. Neurotransmitters
D. Cleft

Answer 1

1. B (synapse)
2. D (cleft)
3. A (calcium)
4. C (neurotransmitters)

Filled: "The junction between two communicating neurons is called a synapse. The neurons don't physically touch. They are separated by a synaptic cleft. As a nerve impulse reaches the axon terminal, calcium ions promote the release of neurotransmitters which cross the space and bind to postsynaptic receptors."