What is the olfactory tract?

olfactory tract passes sensory information from the nose to the rest of the brain, allowing it to interpret odors. The meaning of the smell is one of the oldest and most basic senses and the olfactory system has a number of unique features that distinguish it from other sensory paths. For example, neurons in the olfactory epithelium are constantly replaced by new ones, which is unusual for nerve cells, and the olfactory tract can directly indicate an area of ​​the brain known as the olfactory bark. Specialized nerve cells are sensitized to respond to specific odors and activate neurons that can send a signal along the olfactory tract. These signals pass both into the olfactory cortex and into the limbic system for distribution to other parts of the brain. It can combine this information with another sensory input for perception and understanding of the surrounding environment. They pass through an ethmoid bone that has a structure called a cribiform plate that can accommodate them. A number of small holes called foramin allows nerves through the bones, yet allows bones to protect the skullED by impact, infections and other potential threats. Once in the brain, sensory neurons are directed in several directions to transfer signals from the nose.

head injury sometimes disrupts the olfactory tract. If the Cribiform board is damaged, it may interrupt or crush the nerves, making it difficult to transfer the signals to the brain. Brain -related swelling can exert pressure on the olfactory tract and reduce its information transfer capabilities. Likewise, tumors can grow sufficiently large to push out or damage the nerves ;; Changes in pure sense can sometimes be a warning signal of the brain tumor.

disorders related to a small feeling may occur for various reasons, including genetics, injuries and illness. The loss of fragrance is usually not considered to be a threatening life, but can reduce the quality of life because people can experience a deteriorated feeling of taste. In addition, for people with anosmia, a complete loss of the abilities of the smell may exist riziko that he unknowingly consume spoiled food or is not aware of chemical leakage because the nose cannot detect the problem.