Thyroid gland

Glandula thyroidea

A butterfly-shaped gland in the anterior neck, consisting of two lateral lobes connected by an isthmus across the trachea at the level of the 2nd-3rd tracheal cartilages. It is highly vascularized, receiving blood from the superior and inferior thyroid arteries.

Type Gland
Body System Endocrine
Body Region Neck
Parent Structure endocrine gland
Latin Name Glandula thyroidea
FMA ID 9603

Function

Produces thyroid hormones (T3 and T4) that regulate metabolic rate, protein synthesis, and sensitivity to other hormones. Also produces calcitonin, which helps regulate calcium homeostasis.

Clinical Significance

Hypothyroidism (Hashimoto's thyroiditis) and hyperthyroidism (Graves' disease) are common endocrine disorders. Thyroid nodules and goiter affect millions. Thyroid cancer, while relatively uncommon, has excellent prognosis when treated early. Thyroidectomy risks recurrent laryngeal nerve injury.

Frequently Asked Questions

What is the Thyroid gland?
A butterfly-shaped gland in the anterior neck, consisting of two lateral lobes connected by an isthmus across the trachea at the level of the 2nd-3rd tracheal cartilages. It is highly vascularized, receiving blood from the superior and inferior thyroid arteries.
What is the function of the Thyroid gland?
Produces thyroid hormones (T3 and T4) that regulate metabolic rate, protein synthesis, and sensitivity to other hormones. Also produces calcitonin, which helps regulate calcium homeostasis.
What body system is the Thyroid gland part of?
The Thyroid gland is part of the Endocrine.
What conditions affect the Thyroid gland?
Hypothyroidism (Hashimoto's thyroiditis) and hyperthyroidism (Graves' disease) are common endocrine disorders. Thyroid nodules and goiter affect millions. Thyroid cancer, while relatively uncommon, has excellent prognosis when treated early. Thyroidectomy risks recurrent laryngeal nerve injury.
Where is the Thyroid gland located?
The Thyroid gland is located in the Neck region of the body.

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