What does the medical term Lordosis mean?

The correct answer is Hollow back. Lordosis is a medical term referring to the excessive inward curvature of the spine, particularly in the lumbar (lower back) or cervical (neck) regions. This condition is often colloquially known as "swayback" or "hollow back."

• "Curved neck" is too general; while the cervical spine has a natural lordotic curve, the term lordosis specifically refers to an exaggerated curve.
• "Swollen joints" describes inflammation or fluid accumulation in joints, a symptom of conditions like arthritis, unrelated to spinal curvature.
• "Bent knee" describes a position of the knee joint, not a spinal condition.