A surgical clamp designed to hold or grasp tissue during dissection, commonly used to grasp the cervix. [L. a holder, fr. teneo, to hold]. /teÂ·nacÂ·uÂ·lum/ (tÄ-nakÂ´u-lum) a hooklike surgical instrument for grasping and holding parts.
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1 And, it can damage the blood vessels in your retina, also obstructing blood flow.  Eat plenty of fresh, dark green leafy vegetables, especially kale. Your mother was right â eat your vegetables. Studies have shown that a diet rich in dark leafy greens helps support eye health.