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Assessment Questions 3.5
1. What is highlighted as the most important part of the skeleton concerning bipedalism and quadrupedalism?
The pelvis is emphasized as the most important part of the skeleton.
2. Describe the difference between the innominate bones of a primate quadruped (e.g., chimpanzee) and a human.
The innominate bones of a primate quadruped have a long and narrow top blade (the ilium) that creates a flat plane. In contrast, a human innominate has a short and broad ilium that flares out at the top and seems twisted, producing a complex curve away from the plane of its ischium.
3. How is the configuration of the innominate bone linked to the locomotion of an animal?
The configuration of the innominate bone determines the position of the large gluteal muscles, which, in turn, influences how the creature can move or get around.