Which of the following is used in the treatment of Thyroid cancer
I131
U238
Ra224
C14
The correct option is (A) : I131
I-131, sometimes known as iodine-131, is a radioactive element. Cancer of the thyroid is treated with it. The thyroid gland absorbs iodine from the blood in order to synthesise the hormone thyroxine, which is made from iodine. It is concentrated in the thyroid gland when radioactive iodine is administered to a cancer patient in modest doses because the thyroid gland absorbs radioactive iodine from the blood, which kills thyroid gland cells. Therefore, the enlarged thyroid tissue can be destroyed by radioactive iodine.
Hormones | Chemical Nature |
---|---|
A) Insulin | IV) Protein |
B) Estrogen | I) Steroid |
C) Oxytocin | II) Peptide |
D) Thyroxine | III) Amine |
Match the hormone with its site of production:
The current passing through the battery in the given circuit, is:
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
A full wave rectifier circuit with diodes (\(D_1\)) and (\(D_2\)) is shown in the figure. If input supply voltage \(V_{in} = 220 \sin(100 \pi t)\) volt, then at \(t = 15\) msec:
The human endocrine system is a messenger system that balances or controls distant target organs through feedback loops of hormones released by the internal glands of an organism right into the circulatory system. The hypothalamus is the neural control node for all endocrine systems, in invertebrates.
The endocrine system controls a variety of body functions through hormone release. Hormones are built by the endocrine system's glands and pass throughout the bloodstream to various organs and tissues in the body. Hormones then command these organs and tissues about how to act.
The Endocrine System is in charge of the following bodily functions: