What are the Chemical Messengers Released by Neurons

Question

What are the chemical messengers released by neurons?
A) neurotransmitters
B) hormones
C) paracrines
D) none of the above

Accepted Answer

Neurons release neurotransmitters as chemical messengers to transmit signals to other neurons or target cells, such as muscle cells or gland cells. Hormones are chemical messengers released by endocrine glands into the bloodstream to act on target cells at a distance, while paracrines are local chemical messengers that act on nearby cells without traveling through the bloodstream.