The primary function of the thyroid is the production of the iodine-containing thyroid hormones, triiodothyronine (T3) and thyroxine (T4) and the peptide hormone calcitonin. 1  T3 is so named because it contains three atoms of iodine per molecule and T4 contains four atoms of iodine per molecule.
Explorations of Africa. In the official role of a medical missionary, he set forth to Africa, arriving in Cape Town, South Africa in March of 1841. A few years later, he married Mary Moffat; the couple would have several children.
A pioneer party, led by Major and Mrs Pascoe, set out from Kimberley, South Africa, on 5 May 1891 in a wagon drawn by 18 oxen, arriving in Fort Salisbury on 18 November. The then Rhodesia became a separate territory on 1 May 1931. Work spread to Botswana where The Salvation Army was officially recognised in 1997.