The gender is determined by the article, either definite (the in English) or indefinite (a/an in English). 1  Masculine definite article: le [leu]. 2  Feminine definite article: la.3  Masculine indefinite article: un [nasal sound which can be derived from the English sound un as explained in the first lesson].he gender is determined by the article, either definite (the in English) or indefinite (a/an in English). 1  Masculine definite article: le [leu]. 2  Feminine definite article: la.
Frontal sinus. The frontal sinuses are pockets of space located above the orbit of each eye in the frontal bone. They are lined with mucus membrane, which secretes fluid that moistens and protects the areas it covers. The size and shape of the frontal sinus can vary from person to person.These spaces fill up with mucus, which then drain into the nose. The draining process can be hindered by blockages. If mucus accumulates, this can cause infections.hey are lined with mucus membrane, which secretes fluid that moistens and protects the areas it covers. The size and shape of the frontal sinus can vary from person to person. These spaces fill up with mucus, which then drain into the nose.
Sinus headaches cause a dull, deep, throbbing pain in the front of your head and face. They are caused by an inflammation in your sinuses, air-filled cavities around your nose, eyes, and cheeks. Bending down or leaning over usually makes the pain worse, as does cold and damp weather. Sinus headaches often begin first thing in the morning, and may be better by afternoon.