This video lecture from Support and Movement (F.Sc. second year Biology) covers: Major functions of skeletal system. Difference between endoskeleton and exoskeleton. Structure of bone and structure of cartilage. Difference between bone and cartilage. 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.