The sinuses are cavities, or air-filled pockets, near the nasal passage. Like the nasal passage, the sinuses are lined with mucous membranes. There are four different types of sinuses: 1  Ethmoid sinus. 2  Located inside the face, around the area of the bridge of the nose. 3  This sinus is present at birth, and continues to grow. 4  Maxillary sinus.
AARP Social Security Resources. If you and your spouse file a joint return with a combined income below $32,000, your benefits are out of reach. For income between $32,000 and $44,000, up to 50 percent of benefits may be taxable, and up to 85 percent if combined income is more than $44,000. For more information, go to Social Security's website.
Retirement Planner: Maximum Taxable Earnings. There is a maximum amount of earnings (wages and net profit from self-employment) on which you pay Social Security taxes each year. The maximum amount has changed many times throughout the years. For 2017, the maximum amount of taxable earnings is $127,200.