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.
Functions of the Cranial Nerves. Each of the 12 cranial nerves has a specific function within the nervous system. 1  The olfactory nerve (I) carries scent information to the brain from the olfactory epithelium in the roof of the nasal cavity.  The optic nerve (II) carries visual information from the eyes to the brain.