Question

Increase in breeding time and delay in blood coagulation is due to the deficiency of which hormone?
(a)Thyroxine
(b)Adrenaline
(c)Noradrenaline
(d)Parathormone

Answer 1

They are secreted by the four parathyroid glands. These small glands are situated in the neck behind thyroid glands. They control and regulate the levels of calcium in the blood and raise their levels when they are too low. This gland performs its function through its actions on the bones, intestine, and therefore the kidneys.

Complete answer:
In humans, four parathyroid glands are present on the rear side of the thyroid gland, one pair each within the two lobes of the thyroid gland. The parathyroid glands release a peptide hormone known as parathyroid hormone or parathormone. Parathormone increases the Ca2+ levels in the blood. An increase in bleeding time and delay in blood clotting is thanks to the deficiency of parathormone because its deficiency causes a decrease in blood calcium levels and calcium ion is essential for blood coagulation.

Additional Information: Over secretion of parathyroid hormone can make a person depressed, irritable, insomnia, memory loss, lack of energy, and worries are the most common symptoms in patients with parathyroid disease.
Thyroxine may be a hormone the thyroid secretes into the bloodstream. Once within the bloodstream, thyroxine travels to the organs, just like the liver and kidneys, where it's converted to its active sort of triiodothyronine.
Adrenaline may be a hormone released from the adrenal glands and its major action, alongside noradrenaline, is to organize the body for 'fight or flight'.
Norepinephrine is also known as noradrenaline, which is an organic chemical within the catecholamine family that works within the brain and body as a hormone and neurotransmitter.
So, the correct answer is 'Parathormone'.

Note: Too much Parathyroid hormone causes higher calcium levels in the blood which leads to a disease known as hyperparathyroidism. A too low parathyroid hormone is a rare condition that ends up in low levels of calcium within the blood. It is cured medically with vitamin D connection and oral calcium supplements.