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.
It is essential to first note that every day close to a liter of water is lost from breathing, perspiring and in bowel movements. As well, the average urine output for adults is up to 1.5 liters a day. Consequently, the IOM AI for sedentary men and women (19-50 yr) is 3.7 liters and 2.7 liters per day, respectively.