What is the olfactory bulb?

Olich's bulb is a structure found in vertebrate brains that processes information about odor, and is a key part of the nervous system responsible for the auditory feeling. The cells placed in the nose that process the input odor send signals directly to the olfactory bulb. Then it serves as a way for this entry to travel to various places in the rest of the brain. In the brain, the bulb is located in the front brain, although it sits down in humans, while in other vertebrates it sits on the front. The bony structure called the cribiform slab of the cradle and protects it and separates it from the nasal cavity. It is divided into two sections, main parts and accessories. These receptors broadcast signals along their axons, which are parts of cells that carry information from them. The axons spread over the conrt -up plate and directly into the main olfactory flask and in fact form part of the structure. They create spherical clusters known as glomeruli, which in turn interact with neurons known as mitral cells. Mitral cells Berobes signals for the rest of the path to the olfactory bark; This is the place where the awareness and identification of specific odors occur.

The process is similar to the bulb of accessories, with the exception of the processing of the entry, Fheremony is instead of odors. A separate sensory organ placed in the nose, vomeronazal organ, detects fermons and passes the axons signal to the glomeruli in the bulb. There, the mitral cells also pick up information, but instead of sending it to the olfactory peel, they send them to amygdala and hypothalamus.

In animals with a strong smell, the altar bulb is relatively large. Animals with smaller olfactory capacity, including humans, tend to have a smaller bulb in proportion to their brain. Research has shown that this part of the brain is changing during human maturity. There is also a correlation between the amount of bulb processing and how big it is. For example, someone who lost the sense of smell as a result of injury or illness may have a smaller čan ich area than an average.