Homeostasis examples include the human body temperature, the glucose level and the ability of the lymphatic system to maintain homeostasis. Homeostasis refers to the ability of an organism or environment to maintain stability in spite of changes.
Cam walkers are often used following foot or ankle surgery or after an injury. These devices help protect the injured area. They provide relative immobilization. They also allow for some limited walking (if this is indicated), and will serve to disperse the force of walking more evenly up the leg, due to the rigid sole and the rounded (rocker-bottom contour) of the sole.
Durable steel ratchets can withstand all the misuse that transport might bring. They are simple, no-frills, and reliable. For more delicate cargo, cam straps have the same durable webbing as ratchet straps but the buckle is softer than the ratchet, minimizing damage to the load. Ratchets generally require the use of two hands for pumping; cam buckles use just the press of a lever.