The captured Africans were held in forts, sometimes called 'slave castles', along the coast. They remained there for months until finally leaving their homeland for an unknown destination on board European merchant ships, including those of the British Royal African Company.
Key Points. 1  The majority of fluid output occurs from urination. Some fluid is lost through perspiration (part of the body's temperature control mechanism) and as water vapor in expired air. 2  The body's homeostatic control mechanisms ensure that a balance between fluid gain and fluid loss is maintained.
Then you lose about 1,520 millilitres of water in your urine, and another 100 millilitres in your faeces. And when you add in another 900 millilitres for so-called 'insensible' losses (water that is lost through sweating or breathing) you get a total output of 2,520 millilitres of water.