Between which vertebral levels is the L5-S1 intervertebral disc located?

Between which vertebral levels is the L5-S1 intervertebral disc located?

• A. L5-S1
• B. L4-L5
• C. L3-L4
• D. S1-S2

Answer: (A)

The intervertebral discs sit between adjacent vertebral bodies. The L5-S1 disc is the cushion located between the fifth lumbar vertebra and the first sacral vertebra, marking the transition from the lumbar spine to the sacrum. Higher options like L4-L5 or L3-L4 refer to levels above this junction, while S1-S2 would be between sacral segments (which are fused and do not have a typical intervertebral disc). So the correct location is between L5 and S1.

The intervertebral discs sit between adjacent vertebral bodies. The L5-S1 disc is the cushion located between the fifth lumbar vertebra and the first sacral vertebra, marking the transition from the lumbar spine to the sacrum. Higher options like L4-L5 or L3-L4 refer to levels above this junction, while S1-S2 would be between sacral segments (which are fused and do not have a typical intervertebral disc). So the correct location is between L5 and S1.