The hairs on the skin also help to control body temperature. The hairs lie flat when we are warm, and rise when we are cold. If we are too cold, nerve impulses are sent to the hair erector muscles ...

The skin is shown in this diagram. The hairs on the skin help to control body temperature. They lie flat when we are warm, and rise when we are cold.

Cannon (1932) described the capacity for an animal to regulate its internal environment as the product of a suite of physiological processes, called homeostasis ... of body temperature (T B ...

This concept may be better represented by a raised line diagram to demonstrate the factors involved with maintaining body temperature. The following activities on fever and homeostasis were adapted or ...