Examlex
Instructions: Identify the terms and briefly state their historical significance.
Gabriel
Prostaglandins
A group of local regulators derived from fatty acids; synthesized by most cells of the body and produce a wide variety of effects; sometimes called local hormones.
Steroids
A class of lipids characterized by a carbon skeleton with four fused rings; they play roles in structure, as hormones, and more.
Target Cells
Specific cells affected by hormones or other agents due to the presence of receptors pertinent to the substance in question.
Local Regulators
Prostaglandins (a group of local hormones), growth factors, cytokines, and other soluble molecules that act on nearby cells by paracrine regulation or act on the cells that produce them (autocrine regulation).
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