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Glands

PITUITARY GLAND
Glands are composed of special cells called epithelial cells. There are two main types of glands, Endocrine and Exocrine. Endocrine glands secrete their substances directly into the blood stream, whereas Exocrine glands secrete their substances into ducts. Examples of endocrine glands are the pancreas and the ovaries. Examples of exocrine glands are the sweat glands and the salivary glands. [CG] {NR}

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