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.
Femoral Neck. The femur (thigh bone) has a large, ball-like surface that fits into the hip socket and a short femoral neck that leads to the long shaft of the bone. Bone density tests often use the femoral neck as a testing place.he femur (thigh bone) has a large, ball-like surface that fits into the hip socket and a short femoral neck that leads to the long shaft of the bone.