AP PSYCHOLOGY

Detailed explanation-1: -A neuron sending a signal (i.e., a presynaptic neuron) releases a chemical called a neurotransmitter, which binds to a receptor on the surface of the receiving (i.e., postsynaptic) neuron. Neurotransmitters are released from presynaptic terminals, which may branch to communicate with several postsynaptic neurons.

Detailed explanation-2: -A neurotransmitter is a chemical that relays signals across the synapses between neurons. Neurotransmitters travel across the synaptic space between the terminal button of one neuron and the dendrites of other neurons, where they bind to the dendrites in the neighbouring neurons.

Detailed explanation-3: -Thus, nerve impulse move across the synapse, using chemicals called neurotransmitters. Hence, answer is ‘Adrenaline and noradrenaline’

Detailed explanation-4: -Neurons communicate via both electrical signals and chemical signals. The electrical signals are action potentials, which transmit the information from one of a neuron to the other; the chemical signals are neurotransmitters, which transmit the information from one neuron to the next.

Detailed explanation-5: -At the synapse, an electrical signal arrives at the pre-synaptic terminal and triggers vesicles to release neurotransmitters into the synaptic cleft. The neurotransmitters activate receptors in the post-synaptic neuron and produce electrical signals.