Chordates are animals with backbones. Animal groups in the chordate phylum include fish, amphibians, reptiles, birds and mammals. Animals with backbones are the most highly evolved groups of animals, the most complex and complicated.
Femoral triangle. The femoral triangle (or Scarpa's triangle) is an anatomical region of the upper inner thigh. It is a subfascial space which appears as a triangular depression inferior to the inguinal ligament when the thigh is flexed, abducted and laterally rotated. Contents.
The leg is composed of five distinct sections: upper leg, knee, lower leg, ankle, and foot. The upper leg begins at the hip and continues down to the knee. The only bone in this region is the femur, the largest bone in the body. The femurâs head creates the ball of the ball-and-socket-style hip joint. The base of the femur makes up part of the knee.