Band cells are the immature form of neutrophils and are produced rapidly during an infection. A large percentage of band cells in a venous blood sample indicate an infectious process occurring in the body.
Sensitivity to temperature is a skin sense that is related to the human need to maintain internal temperature balance or thermal homeostasis. Temperature sensitivity is important in protecting one's self from intense temperature that may cause damage to the body.
It may increase or decrease its temperature when it finds that it is too cold or too hot. In this case, temperature is being regulated by a control system, and the control is called homeostasis. Engineers refer to the first kind of action, a simple response to a stimulus, as an open loop system. It is useful to draw a diagram of how such a system works. Such a diagram is shown in Fig.