NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology Human Physiology-Neural Control and Coordination Revision (Page 4 of 17)

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Human Endocrine System & Hypothalamus

It includes the following endocrinal glands:

  1. Hypothalamus

  2. Pituitary

  3. Thyroid

  4. Parathyroid

  5. Adrenal or Suprarenal

  6. Pineal

  7. Thymus

  8. Pancreas

  9. Kidneys

  10. Gonads

  11. gastro-intestinal mucosa

  12. placenta

Image showing the various endocrine glands

Image Showing the Various Endocrine Glands

Image of the various endocrine glands

Hypothalamus

Origin; it develops from the ectoderm of embryo. Hypothalamus is related to both anterior and posterior lobes of pituitary.

Functions of hypothalamus:

  1. Controls the actio

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Disorders by imbalance of thyroid hormone

Disorders are due to excessive or reduced secretion of hormones and accordingly there can be hyperthyroidism or hypothyroidism. Enlargement of thyroid is called goiter it can be because of lack of iodine, tumor, hyperfunctions or hypofunctions of the gland.

  1. Hyperthyroidism (hypersecretion of thyroid hormone)

    1. Graves’ disease or exophthalmic goiter it isan autoimmune disorder in which thyroid receptors are activated. The thyroid is enlarged and secretes excessive amount of thyroid

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