Dog · Muscle · Pelvis
Iliopsoas
Musculus iliopsoas
Main flexor of the hip that draws the limb forward; also steadies the lumbar spine.
- System
- Muscle
- Region
- Pelvis
- Sides
- Paired: left and right
- Named parts
- 2
Where it runs from and to
A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.
- Origin
- Psoas major from the lumbar vertebral bodies and transverse processes; iliacus from the ventral ilium.
- Insertion
- Lesser trochanter on the medial side of the proximal femur.
- Action
- Main flexor of the hip that draws the limb forward; also steadies the lumbar spine.
- Nerve
- Lumbar spinal nerve branches and the femoral nerve.
Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.
Named parts
The parts of this muscle the books name separately, and what each is called in the Nomina Anatomica Veterinaria.
- Psoas majorMusculus psoas major
- The sub-lumbar belly that comes from the lumbar vertebrae and joins the iliacus.Miller 2020, p. 599
- IliacusMusculus iliacus
- The belly from the inside of the ilium that joins it; the two insert together on the lesser trochanter.Miller 2020, p. 599
What it works on
Bones it takes hold of
- Lumbar vertebrae
- Ilium
- Femur
Muscles and ligaments it works with
- Psoas minor
- Quadratus lumborum
- Pectineus
- Vastus medialis
- Rectus femoris
- Sartorius
Terminology
- English
- Iliopsoas
- Latin (NAV)
- Musculus iliopsoas
- Status
- A valid term in the Nomina Anatomica Veterinaria
References
Where to read this structure in full, and where the named parts above were read.
- NAV 2017Myologia: musculi membri pelvini
- Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the pelvic limb
- König & LiebichMuscles of the pelvic limb
- Dyce, Sack & WensingThe hindlimb of the carnivores