What is the Difference Between Thymus and Thyroid?
🆚 Go to Comparative Table 🆚The thymus and thyroid are two distinct glands that serve different functions within the human body. Here are the main differences between them:
Thymus:
- Function: The thymus is a gland that helps protect the immune system.
- Location: It is located in the upper chest behind the breastbone (sternum) and sits between the lungs in a part of the chest called the mediastinum.
- Structure: The thymus is made up of two irregularly shaped parts (lobes) and is pinkish-gray.
- Active until puberty: The thymus is only active until puberty, after which it decreases in size and is replaced by body fat.
- Role in immunity: The thymus produces T-cells, which are responsible for cell-mediated immunity.
Thyroid:
- Function: The thyroid is a gland in the endocrine system that produces hormones that control growth and metabolism (how the body uses energy).
- Location: It is located in the front of the neck, below the voice box (larynx).
- Structure: The thyroid is divided into sections or lobes.
- Constant size: The thyroid stays the same size throughout a person's life span.
- Role in metabolism: The thyroid produces two types of hormones that regulate the body's metabolic rate.
In summary, the thymus is involved in the immune response and is part of the lymphatic system, while the thyroid is part of the endocrine system and controls metabolism.
Comparative Table: Thymus vs Thyroid
Here is a table summarizing the differences between the thymus and thyroid glands:
Feature | Thymus | Thyroid |
---|---|---|
Function | Part of the immune system, produces T cells | Part of the endocrine system, produces hormones regulating metabolic rate |
Location | Located in the chest between the lungs, in front of and above the heart | Found in the neck |
Size | Only large during infancy, shrinks as a person ages | Remains the same size throughout a person's life span |
Structure | Consists of an outer capsule and inner medulla | Comprised of two lobes, each with follicles surrounded by epithelia |
Hormones/Cells | Produces T cells, a type of lymphocyte involved in cellular immune mechanisms | Produces thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3) |
Regulation | Regulated via the hypothalamus and the pituitary gland, along with the thyroid | Also regulated via the hypothalamus and the pituitary gland |
Disorders | Problems with the thymus gland can lead to cancer, such as thymoma, or myasthenia gravis and hypogammaglobulinemia | Disorders include hypothyroidism, hyperthyroidism, and thyroid cancer |
Please note that the thyroid gland and thymus gland are two distinct organs with different functions and structures, despite their similar names.
Read more:
- Thyroid vs Parathyroid
- Adrenal Gland vs Thyroid Gland
- Thymoma vs Thymic Carcinoma
- Thyroxine vs Triiodothyronine
- Thyrotoxicosis vs Hyperthyroidism
- Goiter vs Thyroid Nodule
- Thyroglossal Cyst vs Goitre
- Hypothyroidism vs Hyperthyroidism
- Levothyroxine vs Liothyronine
- Thyroglobulin vs Antithyroglobulin
- Thalamus vs Hypothalamus
- Pituitary vs Thyroid Dwarfism
- PTH vs TSH
- T Lymphocytes vs B Lymphocytes
- Lymph Nodes vs Glands
- Graves Disease vs Hyperthyroidism
- Underactive Thyroid vs Hashimoto’s Disease
- Throat vs Esophagus
- Thyroid Follicle vs Colloid