| A | B |
|---|
| needle | feeds the thread that forms the upper part of the stitch |
| hand wheel | moves the take up lever and needle up and down |
| reverse feed lever | control that allows the machine to stitch backwards |
| bobbin | small spool that holds thread inside the machine |
| take up lever | feeds thread from the spool to the needle; moves up and down as needle moves |
| bobbin winding spindle | holds the bobbin while thread is wound on it |
| feed dog | moves fabric forward with each stitch |
| thread tension control | regulates tightness or looseness of thread |
| stitch width control | determines whether the zigzag or decorative stitch is narrow or wide |
| presser foot | holds fabric in place |
| spool pins | holds the thread spools in place |
| throat plate | contains guideline markings that help keep stitching straight |
| stitch regulator | controls length of stitches |
