Step 1: Identify weaving parts.
- The \textit{reed} is a comb-like device used to beat the weft yarn into place.
- The \textit{heddles} control warp threads.
- The \textit{shed} is the temporary opening between warp threads.
Step 2: Role of the shed.
When alternate sets of warp yarns are raised or lowered, a gap forms between two layers of warp yarns. This gap is called the shed. The weaver passes the shuttle or weft yarn through this space.
Step 3: Conclusion.
Thus, the space where the weft is inserted is the Shed.