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.
Thigh bone: The thigh bone in anatomy is called the femur.. Whichever term you care to use -- thigh bone or femur, it is the bone in the leg that extends from the hip to the knee. The thigh bone/femur constitutes the upper leg, that part of the leg. The word femur is the Latin word for thigh.