Chemical Substances in the Nervous System That Are Similar in Structure

question 164

Multiple Choice

Chemical substances in the nervous system that are similar in structure and in action to opiates are:

• A) hormones.
• B) gamma-aminobutyric acids.
• C) endorphins.
• D) neurotransmitters.

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Definitions:

Fertilized Oocyte

A female egg cell that has combined with a sperm cell, initiating the development of a new organism.

Granulosa

Cells surrounding the oocyte in the ovary, playing a key role in the development and hormone production of the ovarian follicles.

Cumulus Mass

A cluster of cells that surround an oocyte, or egg cell, providing it with nutrients and support during development.

Theca Interna

Inner vascular layer of the theca of the secondary and mature follicle; produces estrogen and contributes to the formation of the corpus luteum after ovulation.