Question

In a healthy individual, increased levels of thyroid hormone would promote ___ feedback onto the anterior, resulting in ___ levels of TSH?

1) negative; increased
2) positive; decreased
3) negative; decreased
4) positive; increased

Answer 1

In a healthy individual, increased levels of thyroid hormone would promote negative feedback onto the anterior, resulting in decreased levels of TSH.

Step-by-step explanation:

In a healthy individual, increased levels of thyroid hormone would promote negative feedback onto the anterior pituitary, resulting in decreased levels of TSH.

Thyroid hormone release is regulated by the hypothalamus and anterior pituitary in a negative feedback loop. When there are increased levels of thyroid hormone (T3 and T4) in the blood, it signals to the hypothalamus and anterior pituitary to inhibit further signaling to the thyroid gland. This leads to a decrease in release of thyroid-stimulating hormone (TSH) from the anterior pituitary, resulting in decreased TSH levels.

Negative feedback is important for maintaining homeostasis in the body, and in this case, it helps regulate the levels of thyroid hormone to keep them within a narrow range.