"hormones"
glands secrete chemical messengers called leucocytes?
The pituitary gland produces something called trophic hormones. What that means is that it makes hormones, which are chemical messengers that control other glands.
They are called hormones.
I believe they are called chemical messengers because of their function and the fact it is a chemical. They travel through the blood and target cells respond to hormones often because of their structure. I have read in a science book (McDougal Littell 's Human Biology) that they are called chemical messengers because they are made at one location and function at another.
Neurotransmitters are the chemical messengers that the neurons use. Neurons have certain parts...dendrites which receives information (about some stimulus or from another neuron)...axon is the part of the neuron that conducts/conveys the signal to the synaptic terminals. The synaptic terminals is the part of the neuron that releases the chemical messenger aka the neurotransmitters.
Hormones
The chemical messages are called as hormones. They are released by the ductless endocrine glands into the bloodstream.
The axon terminals release chemical messengers called neurotransmitters.
Yes. They are called chemical messengers.
Neurotransmitter
It is called a hormone.
The part of the neuron where neurotransmitters are released from is the axon terminal, and they are released into a small space between neurons called the Synapse.