Question

which nerve carry message from nose to brain ​

Answer 1

Answer:

The olfactory nerve is sensory in nature and originates on the olfactory mucosa in the upper part of the nasal cavity. From the olfactory mucosa, the nerve (actually many small nerve fascicles) travels up through the cribriform plate of the ethmoid bone to reach the surface of the brain.

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Answer 2

There is not certain nerve which carry there message.

Just there is a certain receptor which carry this information.

Now if you ask what are receptors then receptors are specialised ends of some nerve cells which can gain information from the external environment. These receptors are mainly located in our sense organs. Such as nose, tongue, ear, skin and eyes...

The receptor which carry the message from nose is called olfactory receptor.
The main function or the main information which is accessed by olfactory receptor smell detection.

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