Thyroxine hormone is secreted by

Pituitary gland

Thyroid gland

Adrenal gland

Testes

None of the above/More than one of the above.

Thyroxine hormone is secreted by Correct Answer Thyroid gland

The correct answer is Thyroid gland.

Key Points

The Thyroid gland is a vital hormone gland playing a major role in the metabolism, growth, and development of the human body.
The thyroid gland produces three hormones:-
- Triiodothyronine, known as T3
- Thyroxine (Tetraiodothyronine), known as T4
- Calcitonin
Iodine is one of the main building blocks of T3 and T4.
Hyperthyroidism (overactive thyroid) occurs when your thyroid gland produces too much of the hormone thyroxine.
- Hyperthyroidism can accelerate your body's metabolism, causing unintentional weight loss and a rapid or irregular heartbeat.
Hypothyroidism:
- The body produces too little thyroxine.

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Diseases	Secretion	Effects
Cretinism	Hyposecretion	It affects children. Retarded mental & physical development.
Myxoedema	Hyposecretion	It affects adults. Swelling in lips, mental deterioration, abnormal metabolism, slow pulse rate.
Simple Goitre	Hyposecretion	Enlargement of the thyroid gland.
Grave's disease	Hypersecretion	Protrusion of eyeballs. Weight loss. Nervousness. Excess sweating.
Plummer's disease	Hypersecretion	Presence of glandular tissue in the form of limps.

Feb 20, 2025

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