Recovery position or left lateral recumbent position.
Left lateral decubitus position is lying on the left side.
The dorsum is medical terminology for the back. Hence, the dorsal position is lying on your back.
Guy is lying on his back with his knees bent up and feet on the bed. Girl is lying on her back on his body with both legs bent in the air.
Ankylosed is the medical term meaning abnormally bent; flexed is the medical term meaning normal bending of a joint.
in a bent position
Supple means that they are flexible or easily bent, i.e. not stiff.
RetroflexedRetorsed
Flexion
The combining form for "crooked" is "aniso-" or "scolio-".
The medical terminology combining form for stiffness, bent or crooked is "ankyl/o".
Mostly called "back lying position". Lay flat on back with your knees flexed/bent upwards with your feet laying flat on the bed. This position is used for medical exam's of vaginal & rectal. Sometimes used for comfort measure or exercise. Rhianna Berriman
Different people approach lying in bed differently. Some people like to lay on their side, with their knees bent. Others like to lay on their back facing the ceiling. Having a pillow between the knees while on the side, or having one under the knees while on the back will help with sleep posture.
bent knees ---- a lap