The joint is made up of three bones: the femur (thigh bone), the tibia (shin bone), and the patella (knee cap). The surfaces of these bones within the joint are covered with a layer of cartilage. This important surface allows the bones to smoothly glide against each other without causing damage to the bone.
Pyeongtaek: A US base, Americana in rural South Korea. As it gears up to host a huge US overseas base, the city is a window on to fraught relations between locals and troops. A commercial street near Camp Humphreys base in Pyeongtaek. [Steven Borowiec/Al Jazeera] Pyeongtaek, South Korea - The commercial area adjacent to the main entrance of the United States' Camp Humphreys military base, is a slice of Americana in the Korean countryside. Most of the signs are in English, the streets are lined with fast-food restaurants, and the street stalls sell french fries and chicken wings beside Korean staples such as blood sausage and rice cakes in red pepper sauce.
Muju is located in the Sobaek Mountains in the center of South Korea. While Muju is infrequently visited for most of the year, the Firefly Festival invites thousands of tourists, primarily from within South Korea.