The psoas is a deep-seated core muscle connecting the lumbar vertebrae to the femur. The psoas major is the biggest and strongest player in a group of muscles called the hip flexors: together they contract to pull the thigh and the torso toward each other.
7 photos: Photos: Tallest man meets shortest man. Chandra, meet Sultan â Chandra Bahadur Dangi, at 21Â½ inches the shortest adult ever verified by Guinness World Records, poses Thursday in London with the world's tallest man, Sultan Kosen, who stands 8 feet 3 inches tall.
According to The Guinness Book of World Records, was the shortest adult human being whose existence and height have been independently verified. Khagendra Thapa Magar born in born October 14, 1992, measures 0.67 m (2 ft 2 1â2 in) and considered the shortest living adult. Formerly the shortest teenager in the world.