ischium
Pelvic sitting bone
The ischium is the lower rear portion of the hip bone, forming the bony prominence you sit on.
Together with the ilium and pubis, it comprises the pelvis.
The plural is ischia.
She bruised her ischium in the fall.
Large pelvic bone
- tuberosityBony surface projection
- ramusAnatomical branching structure
- pubisAnterior pelvic bone
- sacrumFused vertebrae above tailbone
coccyx · pelvic bone · innominate · symphysis · perineum · gluteal · sacroiliac · osseous
Bony basin at waist
- femurUpper leg bone
- sacrumFused vertebrae above tailbone
- coccyxFused vertebrae forming tail
- vertebraeInterlocking bones of spine
patella · tibia · fibula · phalanges · metatarsals · carpals · tarsals · sternum
Supporting physical mass
- seated postureHow one sits
- chairSingle-person sitting furniture
- saddleMounted rider's seat
- cushionStuffed fabric for comfort
ergonomic · pressure point · cycling · sitting · bench · perch · lumbar support · padding
hipbone
Large pelvic bone
- tuberosityBony surface projection
- ramusAnatomical branching structure
- pubisAnterior pelvic bone
sacrum · coccyx · pelvic bone · innominate · symphysis · perineum · gluteal · sacroiliac · osseous
pelvis
Bony basin at waist
vertebrae · patella · tibia · fibula · phalanges · metatarsals · carpals · tarsals · sternum · ribs
weight-bearing
Supporting physical mass
- seated postureHow one sits
- chairSingle-person sitting furniture
- saddleMounted rider's seat
cushion · ergonomic · pressure point · cycling · sitting · bench · perch · lumbar support · padding · comfort