Smell

Nasal Sinuses

• part of the nose and respiratory system.

• air filled cavities that have multiple functions

• they reduce weight of the skull, produce mucus and influence voice quality.

• they also protect against infection and humidify the air we breathe.

Cribriform Plate

• houses and protects olfactory nerve fibres, supports the olfactory bulb above it.

• it is perforated bony cup like a sieve.

Olfactory Bulb

• receives neural information from the olfactory receptors to areas in the brain such as amygdala

• the oribitofrontal corte

Mucous Membrane

• this is a moist membrane made of fine hair, like projections known as cilia.

• they collect debris and act as a filter