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The testes are two oval-shaped male reproductive glands that produce sperm and the hormone testosterone.

More information on: Testes Glands


Testosterone is a hormone that is responsible for many of the physical characteristics specific to adult males. It plays a key role in reproduction and the maintenance of bone and muscle strength.

More information on: Testosterone Hormones


the control of temperature in the body, which is managed by the hypothalamus in the brain.

a blood clot in a vein, which can lead to the vein becoming blocked, disrupting blood supply.

a fungal infection of the mouth, throat or vagina, characterised by white spots or a white discharge; can be treated easily with an anti-fungal medication.

Thyroid cancer is the uncontrolled growth of cells in the thyroid gland which may spread to areas around the thyroid and to other parts of the body. Thyroid cancer can affect people of all ages. Most patients are cured by the treatments now available.

More information on: Thyroid cancer Endocrine Conditions


removal of all or part of the thyroid gland through surgery. Total thyroidectomy is the removal of all of the thyroid gland and requires the patient to take lifelong thyroid hormone replacement medication.

Thyroxine is the main hormone secreted into the bloodstream by the thyroid gland. It plays vital roles in metabolism, heart and muscle function, brain development, and maintenance of bones.

More information on: Thyroxine Hormones


a change in the DNA sequence (genetic code) of an individual, caused by a part of one chromosome moving to form part of another chromosome during cell division.

Triiodothyronine is a thyroid hormone that plays vital roles in the body's metabolic rate, heart and digestive functions, muscle control, brain development and function, and the maintenance of bones.

More information on: Triiodothyronine Hormones


one-third of the length of a pregnancy, lasting approximately 3 months.

(TB) an infection caused by a bacterium, which can affect the whole body but particularly the lungs. TB is spread through the air in droplets – from sneezing or coughing.

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