Group Three (3).pptx
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This document provides information about the ethmoid sinus. It begins by stating the objectives will be to describe the anatomical structure of the ethmoid sinus, its location, and some associated diseases. It then discusses details of the ethmoid sinus, including that it is made of paired air-filled cavities located in the ethmoid bone between the orbits. The ethmoid sinus varies in size and number between individuals. Blood supply and nerve supply are also discussed, as well as drainage and functions of the ethmoid sinus. Some diseases associated with the ethmoid sinus include sinusitis and cancer.
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- 1. APPLIED ANATOMY Ethmoid sinus Group Three (3)
- 2. By the end of this presentation the class will know: ๏ The anatomical structure of the Ethmoid sinus ๏ The locatione of the ethmoid sinus ๏ Some diseases that may associate with the ethmoid air cell or sinus OBJECTIVE
- 3. ๏ช As part of the 4 paranasal sinuses namely the Frontal, Ethmoid, Sphenoid and the maxillary sinuses, the Ethmoid sinuses are paired air โfilled cavities found in the spongy ethmoid bone in the upper part of the nasal cavity tween the obits (eyes). ETHMOID SINUSES
- 4. Ethmoid sinuses varies in both size and number in the lateral mass of eachof the the ethmoid bones with the average of 9 sinuses (ranging from 4- 17 sinuses) in each ethmoidal Structure
- 5. They are divided into anterior and posterior groups situated in the ethmoid labyrinth and completed by the frontal, maxilla, lacrimal, sphenoid and palatine bones,
- 6. ๏ชThe ethmoid sinuses are present at birth and continue to develop up to the age 12year.
- 7. ๏ช The anterior and posterior arteries supply oxygenated blood to the ethmoid sinuses and the anterior and posterior veins carries deoxygenated blood away from the ethmoid sinuses. BLOOD SUPPLY
- 8. ๏ชThe anterior and posterior nerves provide innervation to the ethmoid sinuses. NERVE SUPPLY
- 9. ๏ช The group of the ethmoidal sinuses drains into the nasal meatuses with the posterior group of the ethmoidal sinus drains into the superior meatus above the middle nasal concha. DRAINAGE
- 10. ๏ช Like the other paranasal sinuses, Ethmoid sinuses: Lightening the weight of the head Produces Mucus to lubricate the nose Humidifying inhaled air Filters debris from inhaled air Increase resonance of speech Limits extent of facial injury from trauma Function
- 12. 1.Ogle OE, Weinstock RJ, Friedman, E, Surgical anatomy of the nasal cavity 2.Oral Maxillafac song chin north Am. 2012 may 24(2):155-66 3.Human anatomy Jacob and Elsevier, 2008 page 210. References
- 13. ๏ชThank you
- 14. โข Aseye Gloria Tornyie โข Elijah Otoo โข Elvis Mbah Afanaam โข Richard Ofosuhene โข Augustine Asante โข Irene Mensah โข Prince Sarpong โข Eric Eshun โข Enoch Baah โข Wesley Minfo Group members