The Video lecture from Nutrition (F.Sc. First Year Biology) covers the structure and function of digestive system in Cockroach. Cockroach has mouth, crop, gizzard, hepatic caecae, mesenteron, colon and rectum as major organs for digestion. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.