- Model side
- Left
- Study group
- Iliopsoas · hip flexors
Two components, separate selections
Compare the broad iliacus surface with the longer psoas major on the same side. Enable the optional psoas major context in the hip viewer to compare both surfaces.
Iliacus and psoas major form the iliopsoas functional pair. The viewer keeps the two source surfaces separate; it does not add a third combined muscle mesh.
Sources: University anatomy tables
Attachment overview
Iliacus arises mainly in the iliac fossa and joins the iliopsoas attachment at the femoral lesser trochanter.
The hip bone and femur provide partial attachment context. Sacral attachments and individual tendon fibers cannot be inspected in this assembly.
Sources: University anatomy tables
Main actions
It flexes the hip; with the thigh fixed, it can move the pelvis toward the thigh.
These are anatomical actions, not an animation performed by the model. Rotation controls move the camera; the study does not calculate contraction or force.
Sources: University anatomy tables
Innervation
Femoral nerve.
Nerve paths and the lumbar plexus are not present in this model. The guide does not infer nerve positions from a gap between meshes.
Sources: University anatomy tables
Read the model
Explore left iliacus in 3D
- Inspect one surface. Select iliacus from the structure list, then use Isolate and Focus selection. Rotate to Oblique to inspect its broad surface.
- Compare the pair. Use the two reading cards below the same-side hip viewer. Each opens its own structure page; selecting the opposite side is an explicit choice. Left iliopsoas guides →
- Restore the available context. Psoas major pages restore both psoas muscles and the available trunk bones; iliacus pages restore the same-side leg. In the hip study, enable “Show psoas major · trunk context” to compare the pair with the hip bone and femur. The hip study does not include the spine. Left hip in 3D →
Sources and editorial status
This guide uses independently written explanations with links to the evidence behind them. Source checking and specialist anatomical review are separate steps; the latter is still pending.
- TTUHSC El Paso — Kidneys & retroperitoneum: muscle table
Iliacus and psoas major attachments, actions and distinct nerve supplies. Original concise explanations; no table text or illustrations reproduced.
- TTUHSC El Paso — Anterior & medial thigh
Iliopsoas as the iliacus–psoas major pair and its femoral attachment.
3D geometry and its separate license are credited beneath the viewer. References do not imply endorsement of this site.