Care Guides

Return to Index Step 1: What is an Allergy?Step 2: The Role of the Immune System Step 3: What Substances Cause Allergies?Step 4: Allergy-Related Conditions Step 5: Should You See an Allergist?Step 6: Allergy Testing and Diagnosis Step 7: Introduction to Allergy Treatment Step 8: Avoid Allergy Triggers Step 9: Types of Allergy Medication Step 10: Over-the-Counter vs Prescription Drugs Step 11: Immunotherapy Step 12: You and Your Doctor Are a Team Key Points Glossary

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Sinus video

The four pairs of sinuses include the:

frontal sinuses (highlighted in red)
maxillary sinuses (highlighted in blue)
ethmoid sinuses (highlighted in yellow)
sphenoid sinuses (highlighted in orange)

The sinuses moisten and warm air that is filtered by the nose and play a role in voice resonation.

Review Date: 4/4/2007
Reviewed By: Alan Greene, M.D., F.A.A.P., Department of Pediatrics, Packard Children's Hospital, Stanford University School of Medicine; Chief Medical Officer, A.D.A.M., Inc.

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