Hormones & Signal Transduction 5 Sections28 LessonsLifetime
Curriculum
- 5 Sections
- 28 Lessons
- Lifetime
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- Lecture 012 Items
- Signaling and Signal Transduction7 Items
- Hypothalamic & Pituitary Hormones3 ItemsIn this section we will discuss the hypothalamic endocrine control on varoius hormones secretin. After that the hormones of the posterior pituitary gland, the antidiuretic hormone and oxytocin, will be discussed individually.
- Hormones of the Anterior Pituitary Gland12 ItemsHere we will discuss the Hormones of Anterior Pituitary gland, their secretion, functions and control in various organs
- 4.1The Growth Hormone
- 4.2Gigantism
- 4.3Acromegaly
- 4.4Dwarfism
- 4.5Corticotropin (ACTH)
- 4.6Prolactin – Somatomammotropin
- 4.7FSH – Gonadotropins
- 4.8LH-Luteinizing Hormone
- 4.9Thyroid Stimulating Hormone – TSH
- 4.10The Thyroid (Part 1) – Synthesis & Secretion of Thyroxine
- 4.11The Thyroid (Part 2) – Metabolic effects of Thyroid hormone; Hyperthyroidism
- 4.12The Thyroid (Part 3)-Hypothyroidism, Myxedema, Cretinism
- Steroid Hormones4 ItemsThis section will be on the steroid hormones, their synthesis, secretion, transport, actions on different organs, mechanism of action of steroid hormones, abnormalities of steroid hormones and their management.
Gigantism
Gigantism
- Gigantism is a Growth hormone abnormality caused by excessive secretion of Growth hormone before adolescence.
- Excessive activation of cells, or tumor in the Anterior Pituitary results in rapid growth in all tissues including bones.
- As a result the person becomes a giant; may grow up to 8 feet tall.
- There is hyperglycemia leading to Diabetes mellitus.
- This is caused by secretion of excessive amount of Insulin to meet the requirement and ultimately the Beta cells of Pancreas burn out.
- Pan-hypopituitarism eventually develops as the tumour invades the surrounding tissue resulting in destruction of other pituitary cells.
- Death occurs if untreated.

Sir, shouldnt it be Pan-Hyperpitutiarism in the third last line? Please confirm
No my dear. it is pan hypopituitarism. Reason is that when the tumor grows, it eats up the surrounding tissues and thus they function is compromised and the other hormones cannot be synthesized and secreted. As a result there is hypofunction of all the other parts of pituitary and pan hypopituitarism develops