1 Frontal- one sinus per side, located within the bone of the forehead above the level of the eyes and nasal bridge (figures 1 and 3).  Sphenoid- one sinus per side, located behind the ethmoid sinuses; the sphenoid is not seen in a head-on view but is better appreciated looking at a side view (figure 3).
Blood pressure readings absolutely can effected by exercise, but for how long is a little tougher to answer. Let me explain. During exercise, your heart pumps more blood out to your body per minute, while the blood vessels within the muscles you are using expand. These two countering effects cause a rise in your blood pressure. If you are working one muscle group (i.e. biceps curls), the your blood pressure rises a lot during the exercise. If you are working a large group of muscles (i.e. jogging), then your blood pressure will go up a little.
Angiotensin II also triggers a hormone that makes your body retain water. Having more fluid in your body, in a restricted space, will cause your blood pressure to rise. ACE inhibitors lower your blood pressure by reducing angiotensin II in your body. This allows your blood vessels to relax and widen, making it easier for blood to flow through. It also lowers the amount of water your body retains, which lowers your blood pressure.