The olfactory nerves run from the inside of the nose, through the skull, and then directly into part of the brain called the olfactory bulb.

Bottomline The discovery of microplastics in the olfactory bulbs of the human brain marks a significant milestone in understanding the potential health risks associated with plastic pollution.

Researchers have found evidence of microplastics in the olfactory bulbs of the human brain for the first time, after detecting them in the colon and the bloodstream.

A new study identified the tiny pollutants in the olfactory bulbs of eight cadavers, suggesting microplastics can travel through the nose to the brain ...

Researchers have identified microplastics in the human olfactory bulb, highlighting a potential pathway for these particles to enter the brain and raise concerns about their long-term neurological ...

The olfactory bulbs, located at the bottom of the brain with one in each nasal cavity, contain different kinds of nerve cells that are responsible for helping us smell.

Microplastics can invade the olfactory bulb of the human nose, which transmits smells to the brain, a new study found.

The olfactory bulb is one of the most ancient parts of the brain in evolutionary terms, Landrigan noted. "In the human skull, it sits forward of the rest of the brain.

The tiny scraps of plastic were found in the olfactory bulb, the part of the brain responsible for processing smell.

These regions include the olfactory bulb adjacent to the nasal cavity, which is thought to be a source and “conductor” of brain-wide gamma oscillations.

And dogs’ olfactory bulbs can be up to 30 times larger than people’s. But Johnson wanted to know how smell information wafts to brain regions beyond the obvious sniffing equipment.

A new post-mortem study shows the damage responsible for smell loss in patients with COVID-19 may extend beyond the nasal cavity into the brain, causing permanent injury.