Gland Endocrine glands secrete substances that circulate through the blood stream. The glands secrete their products through basal lamina into the blood stream. Basil lamina typically can be seen a layer around the glands to which a million maybe more tiny blood vessels are attached. These glands often secrete hormones which play an important role in maintaining homeostasis. The pineal gland, thymus gland, pituitary gland, thyroid gland, and the two adrenal glands are all endocrine glands. Exocrine glands secrete their products through a duct onto an outer surface of the body, such as the skin or the gastrointestinal tract. Secretion is
GreenScreen for Safer Chemicals GreenScreen for Safer Chemicals The GreenScreen for Safer Chemicals is a transparent, open standard for assessing chemical hazard that supports alternatives assessment for toxics use reduction through identifying chemicals of concern and safer alternatives. It is used by researchers, product formulators and certifiers in a variety of industries, including building products, textiles, apparel, and consumer products. The GreenScreen prioritizes the avoidance of substances with a high hazard as a carcinogen, mutagen, reproductive toxicant or developmental toxicant or endocrine disruptor or that are a persistent, bioaccumulative and toxic substance (PBT). The GreenScreen protocol is published in a Guidance document that is