The hormone thyroxine is released in response to a pituitary hormone called tsh. as thyroxine levels increase in the blood, they exert negative feedback on the release of tsh by the pituitary gland. what effect will this have on the release of tsh?

Negative effect on TSH release

Explanation:

Thyroxine hormone is secreted by Thyroid gland into the bloodstream. In its active form of triiodothyronine it plays an important part in metabolism, growth, brain development etc.

Release of thyroxine hormone is a part of hypothalamic-pituitary-thyroid axis and follows negative feedback. When the levels of thyroxine increases in the blood, it inhibits the release of TRH( Thyroid-releasing hormone) from hypothalamus which in turn inhibits the release of TSH ( Thyroid-stimulating hormone) from anterior pituitary. Decreased TSH inhibits the secretion of Thyroxine from thyroid gland.

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

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