[Trachea, monkey; x-section, PTS]. The lumen of the trachea is lined by pseudostratified columnar epithelium. Note that all the surface cells have cilia at their free (apical) surface.(What function do these cilia serve in the trachea?) Mucus-secreting unicellular gland cells (goblet cells) are interspersed among the ciliated cells.Trachea, monkey; x-section, PTS]. The lumen of the trachea is lined by pseudostratified columnar epithelium. Note that all the surface cells have cilia at their free (apical) surface.
Complex Carbs on Restrictive Low-Carb Diets. If you're on a restrictive low-carb diet, you may be limited to just 20 grams of net carbs per day. That excludes virtually any food rich in complex carbohydrates, as a single serving of any of the previously mentioned foods contains more than your daily limit.
Simple carbohydrates contain refined sugars that have no nutritional value and, generally, a high calorie count, such as candy, soda and sweetened desserts. On the other hand, complex carbohydrates provide your diet with nutritional fiber, vitamins and minerals from whole grains and starchy vegetables.The recommended daily allowance of carbohydrates is 130 grams for both men and women. One cup of cubed butternut squash contains more than 16 grams of complex carbohydrates.n the other hand, complex carbohydrates provide your diet with nutritional fiber, vitamins and minerals from whole grains and starchy vegetables. The recommended daily allowance of carbohydrates is 130 grams for both men and women. One cup of cubed butternut squash contains more than 16 grams of complex carbohydrates.