Examlex
The condition characterized by overproduction of erythrocytes is called ________.
Psychoactive
Substances that, when taken, alter mood, perception, or brain function.
Glutamate
An important neurotransmitter in the brain involved in cognitive functions such as learning and memory, and is also a key molecule in metabolism.
Retrograde Messenger
A substance that communicates backward from the post-synaptic to the pre-synaptic nerve cell, influencing it.
Nitric Oxide
A gaseous signaling molecule involved in various physiological and pathological processes within the body, including vasodilation and neurotransmission.
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