11. The neural channel of the tail vertebra has a cross-section like an inverted trapezium . 12. The opponens pollicis originates from the flexor retinaculum of the hand and the tubercle of the trapezium . 13. The third metacarpal is connected to the trapezium , to the capitate, and to the hamate. 14. A trapezium as any quadrilateral more general than a parallelogram is the sense of the term in Euclid. 15. The trapezius muscle resembles a trapezium ( trapezoid in American English ), or diamond-shaped quadrilateral. 16. For Live Pop music concerts a more appropriate array for the pickup of ambience is the cardioid trapezium . 17. Shakhristan III includes all these parts; its planning nears to trapezium [ approximates a trapezoid ? ]. 18. You can fix it by first ungrouping the trapezium again, and deleting the right, unconnected side. 19. There is an indication of swelling of trapezium on the outline of shoulder, becoming more pronounced over time. 20. This game is played by teams of 5 players on a trapezium shaped field, mostly located on marketplaces.