Tutorial title - Main components of the axis - Hormones

5 important questions on Tutorial title - Main components of the axis - Hormones

What are thyroid hormones?

They are amino acid hormones produced in the thyroid glands, they bind to nuclear receptors

What are thyrotropin releasing hormones?

They are peptide hormones produced in the hypothalamus that bind to Gq linked receptors in the anterior pituitary thyrotropes

What are thyroid stimulating hormones?

They are peptide hormones produced in the anterior pituitary that bind to Gs (cAMP) and Gq (IP3) linked receptors in the thyroid glands
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What are the effects of T3 in the organism?

- Increased glycogenolysis and gluconeogenesis for increased blood glucose
- Increased production of beta receptors in heart
- Increased myelination of neurons in brain  
- Increased lipolysis for energy
- Bone and muscle homeostasis

What is the role of thyrocytes in the thyroid gland?

Trap iodine through Na+/I- symport proteins and produce thyroglobulin. Iodide channels pump I- into the thyroid lumen.

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