Any of various glands producing hormonal secretions that pass directly into the bloodstream. The endocrine glands include the thyroid, parathyroids, anterior and posterior pituitary, pancreas, adrenals, pineal, and gonads. Also called ductless gland.
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endocrine glands A. thyroid B. pituitary gland C. pineal gland D. thymus E. adrenal glands F. pancreas G. ovaries (female) H. testes (male)
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