Pituitary, thyroid, adrenals, pancreas and gonads secrete hormones directly into the blood.
Hypothalamus and pituitary (master control), thyroid, parathyroids, adrenals, pancreas (islets), pineal, ovaries and testes. Dysfunction leads to hyper- or hypo-secretion disorders.
Endocrine glands are ductless. Their secretions enter blood directly. Exocrine glands use ducts. The pancreas is both.
Remember: the pituitary is the 'master gland' because it controls others.
Pituitary, thyroid, adrenals, pancreas and gonads secrete hormones directly into the blood.
Endocrine Glands is one of the 54 topics in Reproduction & Endocrinology. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Negative Feedback in Endocrine Control, Hypothalamic-Pituitary Axis, Hormones.
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Endocrine Glands is a Beginner topic, so no earlier topic is required. Other Beginner topics in Reproduction & Endocrinology that pair well with it include Reproduction, Asexual Reproduction, Sexual Reproduction.
The closest topics to Endocrine Glands are Negative Feedback in Endocrine Control, Hypothalamic-Pituitary Axis, Hormones, Endocrine Tumours. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Endocrine Glands. To practise the whole of Reproduction & Endocrinology, use the Reproduction & Endocrinology quiz.
Endocrine Glands: Pituitary, thyroid, adrenals, pancreas and gonads secrete hormones directly into the blood. Negative Feedback in Endocrine Control: Rising hormone levels inhibit further secretion, as with thyroxine and TSH. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Negative Feedback in Endocrine Control and explain the difference aloud. Finally, take the Reproduction & Endocrinology quiz and come back to this page for any question you miss.
Rising hormone levels inhibit further secretion, as with thyroxine and TSH.
🌸 Reproduction & EndocrinologyThe hypothalamus controls the anterior pituitary, which signals target glands through trophic hormones.
🌸 Reproduction & EndocrinologyChemical messengers released into the blood that regulate growth, metabolism and reproduction.
🌸 Reproduction & EndocrinologyOvergrowth in hormone-secreting glands can produce excess hormones, as in pituitary adenomas.
🌸 Reproduction & Endocrinology