OCR GCSE Biology 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 1090

What happens to the suspensory ligaments when the ciliary muscles relax?

They slacken

They tighten

When the ciliary muscles relax, the suspensory ligaments become taut or tighten. This occurs in the context of eye accommodation, which is the process that allows us to focus on objects at varying distances.

When the ciliary muscles are relaxed, they exert less force on the suspensory ligaments. As a result, the suspensory ligaments pull on the lens, causing it to flatten. A flatter lens is better suited for viewing distant objects. This adjustment is crucial for clear vision, particularly when shifting focus from nearby to faraway objects.

Understanding this mechanism highlights the importance of muscle and ligament interaction in the eye's ability to accommodate and focus, ensuring we have sharp vision across different distances.

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They tear

They lose elasticity

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