头后仰 meaning in Chinese

tilt the head backward

If a neck injury is suspected , use the jaw - thrust method of opening the airway . the jaw thrust is done by lifting the lower jaw with both hands
怀疑有颈部损伤：托颌法：抢救者将其肘部放在病人头部两侧，用双手同时将左右下颌角托起，使头后仰，同时将下颌骨前移。
The main causes of difficult tracheal intubation were the limitations of neck extension ( n = 1 169 ) , mouth opening ( n = 889 ) , both neck extension and mouth opening ( n = 698 ) , and micromaxillary deformity ( n = 69 )
造成困难插管的原因有：头后仰活动受限( 1169例) ，张口活动受限( 889例) ，头后仰活动受限复合张口活动受限( 698例)和小颌畸形( 69例) 。