Question

Which one of the following statements is incorrect?
A. Glucagon is secreted by the pancreas.
B. Androgen is produced by the ovary.
C. Thyroxine is secreted by the thyroid.
D. Oxytocin is secreted by the pituitary.

Answer 1

The endocrine system regulates a wide range of involuntary physiological functions. It is made up of glands that secrete hormones. Ductless glands are another name for endocrine glands. Hormones are involved in a variety of bodily functions, including growth and development. They also help to keep the neurological system in good shape. The hypothalamus, pituitary gland, pineal gland, thyroid, parathyroid, thymus, pancreas, adrenal gland, and gonads are all endocrine glands found in mammals.

Complete answer:
Option A: Glucagon is secreted by the pancreas: When the amount of glucose in the circulation is too low, the pancreas produces glucagon. Glycogenolysis is the process through which the liver converts stored glycogen into glucose, which is then released into circulation. so, this is correct.
Option B: Androgen is produced by the ovary: Testosterone, which is generated by the male testes, is the most common and active androgen. Other androgens that support testosterone's activities are generated mostly by the adrenal cortex—the outer part of the adrenal glands—and in modest amounts.so, this is incorrect.
Option C: Thyroxine is secreted by the thyroid: Thyroxine is a thyroid hormone that stimulates metabolic rate, growth, and development in all tissues. Thyroxine is the main hormone produced by the thyroid gland (the other is triiodothyronine). Thyroxine's main purpose is to increase oxygen consumption and, as a result, metabolism in all cells and tissues of the body. So, this is correct.
Option D: Oxytocin is secreted by the pituitary: The hypothalamus produces oxytocin, which is then stored and released into the bloodstream via the posterior pituitary.

As a result, option B is the right answer.

Note:
The master gland is the pituitary gland. This is a pea-sized structure at the base of the brain. Other glands in the body are controlled and regulated by them. Growth hormone, thyroid-stimulating hormone, LH, FSH, and other hormones are produced by this gland. The paired parathyroid gland is formed like a butterfly. This gland secretes a hormone called parathormone, which controls calcium and phosphorus levels in the bones.