Question

in which direction does the transmission of an impulse cross a synapse?
a dendrite to axon
b axon to dendrite
c either way
d both ways

Explanation:

Neurons transmit impulses. At a synapse, neurotransmitters are released from the axon terminal of one neuron and bind to receptors on the dendrite of the next neuron, making the transmission unidirectional from axon to dendrite.

Answer:

B. Axon to dendrite