A sugar cane worker in St. Lucia experienced severe back pain after lifting heavy loads repeatedly. X-rays showed damage to the intervertebral discs. What is the main function of these discs?

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Question

A sugar cane worker in St. Lucia experienced severe back pain after lifting heavy loads repeatedly. X-rays showed damage to the intervertebral discs. What is the main function of these discs?

Accepted Answer

To absorb shock between vertebrae — Award 1 mark for “To absorb shock between vertebrae”. Intervertebral discs are cartilaginous structures that cushion the vertebrae and absorb shock. “To produce red blood cells” is incorrect because red blood cells are produced in bone marrow, not discs. “To allow the spine to bend and twist” is incorrect because while discs allow some flexibility, this is not their main function. “To attach muscles to the vertebrae” is incorrect because tendons, not discs, attach muscles to bones.

Answer

To attach muscles to the vertebrae

Answer

To allow the spine to bend and twist

Answer

To produce red blood cells

Answer

To absorb shock between vertebrae

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