Hinge joint best examples of ginglymoid joints are the Interphalangeal joints of the hand and those of the foot and the joint between the humerus and ulna. The knee joints and ankle joints are less typical, as they allow a slight degree of rotation or of side-to-side movement in certain positions of the limb. The knee is the largest hinge joint in the human body. Hinge and pivot joints are both types of synovial joint. A hinge joint can be considered a modified sellar/saddle joint, with reduced movement. Other objects that work like hinged joints are door hinges, closet doors, and dog
Gliding tree frog Gliding tree frog The gliding tree frog ("Agalychnis spurrelli") is a species of frog in family Hylidae. It is found in Colombia, Costa Rica, Ecuador, and Panama. Other common names are the gliding leaf frog and Spurrell's leaf frog. Its natural habitats are subtropical or tropical moist lowland forests and intermittent freshwater marshes. It is threatened by habitat loss. The gliding tree frog grows to a snout to vent length of for males and for females. The head is broad and the eyes are large, with reticulated lower eyelids. The body is slim with smooth skin on the dorsal surface