A fetal position where the spine is flexed, knees are drawn towards the chest, and arms are wrapped around the legs.
On his or her back with their knees flexed
On his or her back with his or her knees flexed
On back with knees flexed in
The lithotomy position is a modification of the dorsal recumbent position, where the patient lies on their back with hips and knees flexed, and legs supported in stirrups.
the position of the upper extremities when they are abducted to 90 degrees and externally rotated at the shoulders and with the elbows flexed to 90 degrees.
back with knees flexed
If you mean as when a woman is giving birth or during pelvic examination, it's referred to as the lithotomy position.
Flex is a synonym for flexed.
Flexed arm hang is an exercise that involves hanging from a pull-up bar with the arms flexed at the elbows. It helps to strengthen the muscles of the arms, shoulders, and back, particularly the muscles used during the pull-up exercise. Holding the position for a set amount of time can help improve muscular endurance.
On his or her back with their knees flexed
the position of the upper extremities when they are abducted to 90 degrees and externally rotated at the shoulders and with the elbows flexed to 90 degrees.