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Olfactory in sentence

35 examples of Olfactory in a sentence

And I can with all honesty look her in the eye and say, "Because our pheromones matched our olfactory receptors."
By seven months of gestation, the fetus' taste buds are fully developed, and its olfactory receptors, which allow it to smell, are functioning.
But then, in the 1990s, studies starting showing, following the lead of Elizabeth Gould at Princeton and others, studies started showing the evidence of neurogenesis, the birth of new brain cells in the adult mammalian brain, first in the olfactory bulb, which is responsible for our sense of smell, then in the hippocampus involving short-term memory, and finally in the amygdala itself.
And if you're wondering, somebody actually did the experiment where they cut off the olfactory sense of the squirrels, and they could still find their nuts.
But at the very back of your nose is a region called the olfactory epithelium, a little patch of skin that's key to everything you smell.
The olfactory epithelium has a layer of olfactory receptor cells, special neurons that sense smells, like the taste buds of your nose.
When odor molecules hit the back of your nose, they get stuck in a layer of mucus covering the olfactory epithelium.
As they dissolve, they bind to the olfactory receptor cells, which fire and send signals through the olfactory tract up to your brain.
As a side note, you can tell a lot about how good an animal's sense of smell is by the size of its olfactory epithelium.
A dog's olfactory epithelium is 20 times bigger than your puny human one.
For example, our olfactory epithelium is pigmented, and scientists don't really know why.
It turns out that your brain has 40 million different olfactory receptor neurons, so odor A might trigger neurons 3, 427, and 988, and odor B might trigger neurons 8, 76, and 2,496,678.
Olfactory neurons are always fresh and ready for action.
Once they are triggered, the signal travels through a bundle called the olfactory tract to destinations all over your brain, making stops in the amygdala, the thalamus, and the neocortex.
But even though we've all got the same physiological set-up, two nostrils and millions of olfactory neurons, not everybody smells the same things.
If the olfactory epithelium gets swollen or infected, it can hamper your sense of smell, something you might have experienced when you were sick.
Those scents hit your olfactory epithelium and tell your brain a lot about what you're eating.
This second airflow enters a region filled with highly specialized olfactory receptor cells, several hundred millions of them, compaired to our five million.
And it turns out that the olfactory system dedicated to proessing smells takes up many times more relative brain area in dogs than in humans.
A whole separate olfactory system, called the vomeronasal organ, above the roof of the mouth, detects the hormones all animals, Including humans, naturally release.
It turns out we humans, like all vertebrates, have lots of olfactory receptors.
In fact, more of our DNA is devoted to genes for different olfactory receptors than for any other type of protein.
Could olfactory receptors be doing something else in addition to allowing us to smell?
However, about a year or so later, a report emerged of an olfactory receptor expressed in a tissue other than the nose.
Rather, after you drink your morning coffee, your liver might use an olfactory receptor to chemically detect the change in concentration of a chemical floating through your bloodstream.
Many cell types and tissues in the body use chemical sensors, or chemosensors, to keep track of the concentration of hormones, metabolites and other molecules, and some of these chemosensors are olfactory receptors.
I like this example because it clearly demonstrates that an olfactory receptor's primary job is to be a chemical sensor, but depending on the context, it can influence how you perceive a smell, or in which direction sperm will swim, and as it turns out, a huge variety of other processes.
Olfactory receptors have been implicated in muscle cell migration, in helping the lung to sense and respond to inhaled chemicals, and in wound healing.
In my lab, we work on trying to understand the roles of olfactory receptors and taste receptors in the context of the kidney.
We've identified a number of different olfactory and taste receptors in the kidney, one of which, olfactory receptor 78, is known to be expressed in cells and tissues that are important in the regulation of blood pressure.