Question

Which cells in this pathway are ciliated?

a. section of olfactory epithelium with relation to the ethmoid bone and the olfactory bulb.
b. the upper layer contains cells each with short branched extensions and one long extension running down through gaps in the underlying layer.
c. the third layer from the top contains bundles of threads and a sac-like structure. the fourth layer from the top contains tightly packed columnar cells.
d. letter 'a' indicates the threads running to the cells in the upper layer.
e. letter b indicates the upper layer.
f. letter c indicates a long extension running from the cells in the upper layer through the second layer.
g. letter d indicates a cell with outgrowths in the four layers.

Answer 1

The ciliated cells are found in the nasal cavity's olfactory epithelium, where they trap odorant molecules with their cilia, leading to the stimulation of olfactory sensory neurons.

Step-by-step explanation:

The ciliated cells in question are located within the olfactory epithelium. Specifically, these cells are a part of the nasal cavity and are responsible for detecting odors. These cells have hair-like cilia which trap odorant molecules, allowing the olfactory receptors to interact with these molecules. Upon binding of an odorant molecule, the olfactory sensory neuron is stimulated, and signals are then sent to the olfactory bulb. It is important to note that, while the olfactory epithelium contains these ciliated olfactory receptor cells, not all structures described such as the olfactory bulb and the axons contain ciliated cells.