The Human Spine Acts Like a Weight-Bearing Column

question 26

Multiple Choice

The human spine acts like a weight-bearing column. Compare this to the spine of a horse, which acts like an elastic suspension bridge. Which organism would you predict to experience more back pain and why?

• A)the horse, because its spine is less evolutionarily advanced
• B)the horse, because its spine supports more organ systems than human spines
• C)the human, because in order to walk upright, the spine is compressed
• D)the human, because of longer neurons

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