Olfaction: Olfaction refers to our sense of smell. It involves detecting and perceiving odor molecules through the activation of olfactory receptors.
Odorants: Odorants are chemical substances that produce specific smells. When they come into contact with olfactory receptors, they trigger a response in our sense of smell.
Nasal Cavity: The nasal cavity is the hollow space inside our nose. It contains the olfactory epithelium, which houses the olfactory receptors responsible for detecting smells.