extend

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ex·tend

(eks-tend'),
To straighten a limb, to diminish or extinguish the angle formed by flexion; to place the distal segment of a limb in such a position that its axis is continuous with that of the proximal segment.
[L. ex- tendo, pp. -tensus, to stretch out]

ex·tend

(eks-tend')
To straighten a limb, to diminish or extinguish the angle formed by flexion; to place the distal segment of a limb in such a position that its axis is continuous with that of the proximal segment.
[L. ex-tendo, pp. -tensus, to stretch out]

extend

(ĕk-stĕnd′) [Gr. ex, out, + L. tendere, to stretch]
1. To straighten a joint such as the knee or elbow by increasing the angle formed by the proximal and distal bones.
2. To move forward.
3. To increase the angle between the bones forming a joint.