prepares is a form of:

Knee jerk



1.
(វេជ្ជសាស្ត្រ) រេផ្លិចជង្គង់
noun
1.
(វេជ្ជសាស្ត្រ) ភាពភ្ញោចរបស់សរសៃគ្រាប់អង្គុញ
ENGLISH MEANING
1.
A jerk or kick produced by a blow or sudden strain upon the patellar tendon of the knee, which causes a sudden contraction of the quadriceps muscle.