What is an ethmoid bone?

In human anatomy, the ethmoid bone is one of the bones that make up the skull. It is located between the nasal cavity and the cerebral cavity and forms the nasal roof of the cavity, part of the walls of the nasal cavities, part of the bony orbits around the eyes and parts of the skull floor. This important structure is sometimes called ethmoid bone, it is pneumatized, which means that it is a spongy type of bone with light bone plates.

Ethmoid bone consists of four main parts. The structure that forms the septum of the nose is called a perpendicular plate. Two bones that resemble parts of the orbital structure and structure of the nasal cavities are called labyrinths or side mass. The horizontal album of the ethmoid bone, which forms part of the bottom of the skull space, is called a cribriform board.

There are other structures and projections ranging from the ethmoid bone. Cribriform album leads to a structure called Crista Galli or "Cock's Comb," which are anchored some of the connective tissues that anchor the brain inside the skull. Delicate KoStanded structures called turbine bones spread from the ethmoid bone to the nasal cavity, where they support important mucous membranes that contribute to the feeling of smell.

Due to their spongy, light structure, the ethmoid bones are particularly gentle and prone to injury. In situations where an ascending blow to the nose is maintained, because in some automotive accidents, Etmoid bones can break. This may result in bone fragments to penetrate the brain, which may have serious side effects, and in extreme cases it can even be fatal. Ethmoid bone injury can also lead to harm or loss of olfactory. This is due to the fact that olfactory nerves that transmit news from the nose to the brain pass through ethmoid bones and, if violated, these nerves can be irreversibly damaged.

in human ethmoid bones there are small deposits of oxide minerals thatLeza called Magnetite. This feature is considered to be the residual rest remaining of the very early evolutionary times. A similar deposit is found in the ethmoid bones of some birds and fish, where it is assumed to be important in biomagnetic navigation, allowing these animals to feel the direction of the Earth's magnetic field, was like a compass.