Examlex
Name the secretory structures that produce milk in a lactating female.
Serotonin
A neurotransmitter involved in regulating mood, appetite, sleep, memory, and learning. Imbalances in serotonin are associated with depression and other mood disorders.
Endorphins
Natural, pain-killing chemicals released in the brain that also contribute to sensations of pleasure or well-being.
Enkaphalins
Peptides found in the brain, acting as neurotransmitters or neuromodulators, involved in regulating pain and emotion.
Neurons
Neurons are the basic working units of the brain and nervous system, specialized cells designed to transmit information to other nerve cells, muscle, or gland cells through electrical and chemical signals.
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