Several types of cells in the immune system engulf microorganisms via phagocytosis. 1  Neutrophils. 2  Neutrophils are abundant in the blood, quickly enter tissues, and phagocytize pathogens in acute inflammation. 3  Macrophages. 4  Macrophages are closely related to monocytes in the blood.
Snowfall in Flagstaff ranged from 5 inches to 9 inches, with 8.6 inches at Flagstaff Pulliam Airport. Official record-keeping on Flagstaff's weather began on September 9, 1898, and a 30-year period ending in 2000 has been used in the last decade to determine what is average weather-wise.
Designated as Arizonaâs winter wonderland, Flagstaff attracts visitors from all over to our snowy playground. Accumulating an average of 100 inches of snow annually in downtown, the surrounding ponderosa forests are blanketed with even more, welcoming winter enthusiasts to partake in a multitude of winter activities, such as skiing, snowshoeing, sledding and snowbiking.