In other words: if you want to be the next Yves Saint Laurent, it helps to be completely and utterly obsessed with fashion. However, there are many aspects of the profession. Working as a fashion designer can just as well mean supervising a design team at a sportswear company as producing a label under your own name.
Olfactory receptor cells, actually neurons, are the site of transduction. Olfactory receptor cells are the only neurons in the nervous system that are regularly replaced (they last about 4-8 weeks). The size of the epithelium is a good indicator of the acuity of an animal's sense of smell.
When you detect a smell and sniff at it, you are increasing the number of scent molecules that will enter your nasal cavity and flow by the olfactory receptor cells on the roof of the nasal cavity, bathing them in sensory stimuli. The olfactory nerve will then send the stimuli to the olfactory center in the brain. This is a very direct route from the nose to the brain which helps us react quickly to the different smells that we detect. The brain will identify the smell and give a signal how to respond. Some responses are subconscious,