An external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.n external fixator acts as a stabilizing frame to hold the broken bones in proper position. In an external fixator, metal pins or screws are placed into the bone through small incisions into the skin and muscle.
Cockatoo Squid This transparent cockatoo squid (Leachia sp.), also known as a glass squid, lives in the depths of the ocean and has many adaptations to help it survive there. It retains ammonia solutions inside its body that give it a balloon-like shape and help it float.
In the Caspian Sea the greatest variety is within fish and crustaceous species. These organisms, due to their very good osmoregulatory abilities, are capable of living in a very wide range of salinities ranging from fresh water up to salt concentrations even higher than those found in the ocean (Zenkevich, 1963).