Answer : " law of 10 " word : crack side of apical towards the left from buttock or on the right side of equalize is horizontal, make one perpendicular bisector from qia ji apogee next, will coxal cent is 4 quadrant, quadrant goes up outside its and escape an internal angle ( connect a line to big rotor from the thorn on qia hind ) it is inject area namely
答： "十"字法：從臀裂頂點向左側或
右側劃一水平線，然後從
髂嵴最高點作一垂直平分線，將臀部分為四個象限，其外上象限並避開內角（從
髂後上棘至大轉子連線）即為注射
區。
Figure 5. oblique scan in right iliac fossa showing the zone of transition ( arrow )
右側
髂窩斜向掃描顯示過渡
區（箭頭） 。
Figure 3. oblique scan of the right iliac fossa showing the zone of transition ( arrow ) of the dilated to nondilated bowel
圖3右側髂窩斜向掃描顯示擴張和非擴張腸管的過渡區（箭頭） 。
