Parts and functions of a sewing machine?

TermsDefinitionsSeam Guide/Throat PlateKeeps seam straight and evenFeed DogMoves the fabric through the machinePresser FootHolds the fabric down against the feed dog while stitchingNeedleThread through eye, front to backPresser Foot DialControls the height of the presser footTension ControlControls the tightness and looseness of thread (leave alone)Spool PinHolds the spool of the threadThread Guide for Bobbin WinderDirects the thread to the bobbin when windingBobbin CaseWhere the bobbin is placed when winding the bobbinHandwheelControls the up and down movementSpeed ControlControls the speed of the machineNeedle PositionRaises and lowers the needlePresser Foot LifterLifts and lowers the presser foot (silently)Stop/Start ButtonFor sewing without a pedalBackstitch ButtonMakes a backstitchStitch WidthControls the width of the stitch (zigzag)Stitch LengthControls the length of the stitch (short-long)Backstitch ButtonPress to automatically sew reverse or reinforce stitches at the beginning or end of stitchingNeedle Stop Position KeyUsed when pivoting. If the key is lit, the sewing machine will stop with the needle in the fabric. If the key is not lit, the machine will stop with the needle raised.Free ArmRemovable part that allows you to sew in small areas easierOn/ Off ButtonTurns the machine on and offThread CutterRazor to cut threads when finished sewing