HA2 (HeadNeckMouthThroatNoseSinus)

The zygomatic arch down to the angle of the jaw o

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the zygomatic arch down to the angle of the jaw o Submandibular: lies beneath the mandible at the angle of the jaw o Sublingual: smallest; lies within the floor of the mouth under the tongue Throat Pharynx: passage for food and air; area behind the mouth and nose; Palantine Tonsils: each a mass of lymphoid tissue; tonsillar tissue enlarges during childhood until puberty then involutes. Soft Palate: Anterior and Posterior Pillar: A fold of tissue on each side of the oropharnyx that separates it from the mouth Uvula: Nose : warms, moistens and filters the inhaled air, and it is the sensory organ for smell. Septum: divides the two nares; continous outside with the columella. Turbinates: superior, middle and inferior; they increase the surface area so that more blood vessels and mucouse membranes are available to warm, humify and filter inhaled air Sinuses: Four pairs; Two pairs are accessible for examination o Frontal: in the frontal bone above and medial to the orbits; absent at birth, fairly well developed between 7- 8 years of age, reach full size after puberty; o Maxillary: in the cheekbone along the side walls of the nasal cavity; present at birth, reach full size after all permanent teeth have erupted Two other sets are smaller and deeper o Ethmoid: between the orbits; present at birth; grow rapidly between 6-8 years of age and after puberty; o Sphenoid: deep within the skull in the sphenoid bone; develop after puberty; Oral Cancer Risk Factors: Tobacco, Alcohol, >40 years olf, UV light, Diet low in fruits and veggies Risk Reduction Tips: Stop smoking, decrease alcohol, healthy diet, avoid excessive sunlight
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