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.
Studies have shown that using too small of a blood pressure cuff can cause a patient's systolic blood pressure measurement to increase 10 to 40 mmHg. Blood Pressure Cuff Used Over Clothing1,3,4 - When having your blood pressure measured, the cuff should always be placed directly on your arm. Studies have shown that clothing can impact a systolic blood pressure from 10 to 50 mmHg.