Olfactory nerve filaments are found a. in the optic bulbs, b. passing through the cribriform plate of the ethmoid bone, c. in the optic tracts, d. in the olfactory cortex.

Video transcript

Hi, everybody. Here's your next question. How are the olfactory CIA different from the other CIA of the body? A? They are longer. B, they are the most abundant C, they are largely nonmotile or D they beat in a coordinated manner. Well, the main difference between the olfactory cilia and the other cilia are choice C, they are largely nonmotile. Usually cilia move in a sort of wavelike motion and that's to move mucus or other substances through the body along a cell surface. But the olfactory Celia do not generally move, they don't create this movement or cause anything to move along the self surface. So that means we can also eliminate toys of d they beat in a coordinated manner because they don't beat. They're largely nonmotile. Let's just double check our other answers. Choice. A they are longer. Well, they're actually relatively short compared to other sylla. So that's not our correct answer. So we can cross that out. And finally, b they are the most abundant. Well, that's not true either. They're found only and the upper parts of the nasal tract. So they're actually in quite a limited area. So choice B, not our answer either. So again, the difference between olfactory sylla and other sylla of the body choice. C they are largely nonmotile. See you in the next video.