Glossary N


Glossary of Terms

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Natural Progesterone

Naturally occurring hormone secreted by the corpus luteum of the ovary to promote pregnancy and also by the adrenal cortex in the glucocorticoid pathway; bio-identical hormone synthesized from plant origin used in hormone replacement therapy.

Neural Networks

A group of neurons and neural connections (synapses, dendrites, and axons) that code for specific memories, perceptions, or behaviors.


The removal of a specific nerve or a portion of a nerve. This is usually done to treat pain.


Relating to the atrophy or decline of tissue of the nervous system.


Of a hormonal substance that influences the action and mechanisms of nerves.


A type of cell that makes up tissues of the nervous system and that can send out and accept nervous impulses.


A small lump or cluster of tissue.

Norethindrone acetate (Norethindrone)

A drug that acts by inhibiting follicular growth and development and ovulation by suppressing follicle-stimulating hormone (FSH) and Luteinizing hormone (LH). Indicated for the treatment of amenorrhea (secondary), endometriosis, and abnormal uterine bleeding that is due to hormonal imbalance.

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