Chitin is a primary component in the exoskeletons of arthropods and crustaceans and is also found in the cell walls of fungi. It's a polysaccharide, and it's excreted by the epidermal cells in arthropods.
Definition & Facts. Hemorrhoids, also called piles, are swollen and inflamed veins around your anus or in your lower rectum. External hemorrhoids form under the skin around the anus. Internal hemorrhoids form in the lining of the anus and lower rectum.
Hemorrhoids are characterized by the pain in the rectal area, which often comes with bleeding, itching, and tissue bulges. Being overweight puts pressure on the rectal muscles which in turn, may cause hemorrhoids. Keeping an ideal weight is still the best way to combat this disease. So if you think that you are a little too big for your height or frame, try to adjust your daily diet and physical activities accordingly.