Question

name the source of thyroxine​

Answer 1

Answer:

THYROID GLAND

Explanation:

Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It is the inactive form and most of it is converted to an active form called triiodothyronine by organs such as the liver and kidneys

Both T3 and T4 are secreted by the thyroid gland, the hormones are stored in follicle stems between thyroid cells.

Normal Thyroid cells.

The thyroid gland is an endocrine gland at the front of the neck, just below the Adams apple; it is made up of two lobes lying along the trachea joined by a thin band of thyroid tissue called the isthmus.

The thyroid gland is controlled by the pituitary gland, situated at the base of the brain. The pituitary gland stimulates the production of T3 and T4 by producing Thyroxine Stimulating Hormone (TSH), thyrotropin when the levels of thyroid hormones are low. Once T3 and T4 levels are high enough TSH levels decrease and the production of thyroid hormones decreases.

The Pituitary gland is regulated by the hypothalamus which is part of the brain and secretes TSH Releasing Hormone,

Answer 2

thyroxine is the main hormone scrated in to the bloodstream by the thyroid gland