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.
(Getty Images) Your Social Security payments in retirement might be taxable, depending on how much you earn and the sources the money comes from. About 40 percent of Social Security beneficiaries pay taxes on their benefits. Hereâs how to minimize the taxes you pay on your Social Security income. Keep your income below the threshold. If your only source of retirement income is Social Security, you probably wonât have to pay tax on your payments.