The daily average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile). The warm season lasts from July 21 to October 2 with an average daily high temperature above 88AÂ°88Ã¢. f
Epithelial cells help to protect or enclose organs. Most produce mucus or other secretions. Certain types of epithelial cells have tiny hairs called cilia, which help remove foreign substances. Epithelial cells are arranged in single, or multiple layers, depending on the organ and location.
Respiratory epithelial motile cilia, which resemble microscopic hairs (although structurally and biologically unrelated to hair), are complex organelles that beat synchronously in the respiratory tract, moving mucus toward the throat.