Based on what you know of bone features, what do you think this canal is for? Why would we need a hollow space in this area of this bone?

The mandibular canal, also referred to as the Inferior Alveolar Canal (IAC), sits within the mandible. It serves the purpose of housing the inferior alveolar nerve which is responsible for supplying sensation to the lower teeth.

This canal also houses the inferior alveolar vein - a dental vein whose function is to (with the assistance of the posterior alveolar artery) drain blood from the lower teeth and jaw.

A picture of the mandibular canal is attached.

Cheers!

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for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )