Respiratory System

Structure and Function

Why is the sneeze reflex important?

The sneeze reflex functions to dislodge foreign substances from the nasal cavity. Sensory receptors detect the foreign substances and stimulate the trigeminal nerves to the medulla oblongata, where the reflex is triggered. During the sneeze reflex, some air from the lungs passes through the nasal passages, although a significant amount passes through the oral cavity.


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