NEET PG DENTAL EXAM

EMBRYOLOGY

ENDOCRINE GLANDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following hormones secreted by the thyroid increases the rate at which cells release energy?
A
Thyroxin
B
Calcitonin
C
Adrenaline
D
Insulin
Explanation: 

Detailed explanation-1: -Your hypothalamus releases thyrotropin-releasing hormone (TRH), which triggers your pituitary gland to release thyroid-stimulating hormone (TSH), which stimulates your thyroid to release T3 and T4.

Detailed explanation-2: -Thyrotropin-releasing hormone is the master regulator of thyroid gland growth and function (including the secretion of the thyroid hormones thyroxine and triiodothyronine). These hormones control the body’s metabolic rate, heat generation, neuromuscular function and heart rate, among other things.

Detailed explanation-3: -The thyroid gland produces thyroxine (referred to as T4), which is a relatively inactive prohormone, and the highly active hormone called triiodothyronine (referred to as T3). Collectively, thyroxine and triiodothyronine are referred to as the thyroid hormones.

Detailed explanation-4: -TSH, in turn, stimulates thyroid follicular cells to release thyroxine or T4 (80%), and triiodothyronine or T3 (20%). Somatostatin, on the other hand, is another hormone produced by the hypothalamus that inhibits the release of TSH from the anterior pituitary.

There is 1 question to complete.