The Effects Of Cystic Fibrosis On Body Systems 0.0 / 5 ? BiologyHealth, illness and diseaseASEdexcel Created by: flowerbunnyCreated on: 22-03-14 13:06 The Gas Exchange System Sticky mucus forms in the lungs due to non-functioning CFTR channels. Sticku mucus cannot be cleared by beating celia. The mucus then traps dust and bacteria. Leading to the increase of chance of lung infection due to pathogens in the mucus The mucus blocks airways making gas exchange in the lungs less efficient 1 of 3 The Digestive System The pancreatic duct becomes blocked by sticky mucus, leading to the relase of digestive enzymes being reduced. The lower concentration of enzymes within the small intestine reduces the rate of digestion, Because of this food is not fully digested in the time it takes to pass through the small instestine. Therefore nutrients cannot be absorbed. 2 of 3 The Reproductive System In females, sticky mucus collects in the cervix, leading to mucus plug developing. Sperm cannot penetrate the mucus so the chance of contraception is reduced. Males often lack sperm ducts or if present they become particulary blocked by mucus. Leading to a reduction in the number of sperm present in each ejaculate. 3 of 3
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