The disc joint is a cartilaginous joint that is composed of outer fibers called the annulus fibrosus that encircle the inner nucleus pulposus.
Introduction to the Cervical Spine
It is extremely important to be able to locate and palpate the laminar groove of the cervical spine because the thickest musculature is located there.
Rectus Capitis Posterior Major Suboccipital Muscle and Tension Headaches
The rectus capitis posterior major (RCPMaj) of the suboccipital group musculature is a small muscle located deep in the superior aspect of the posterior neck, directly inferior to the occiput (hence the name suboccipital). It is an extremely important muscle to know and be able to assess and treat because it is often responsible for clients’ tension headaches.
Psoas Major Function: Spinal Joint Actions – Sagittal Plane
The psoas major’s sagittal plane lumbar spine joint action is by far its most controversial function. The term “psoas paradox” describes this controversy.
Psoas Major Function: Spinal Joint Actions – Frontal and Transverse Planes
The frontal plane spinal action of the psoas major is fairly clear; it crosses the spinal joints laterally, so it lateral flexes the spine to that side.
FREE DCOMT video – Piriformis Becomes a Medial Rotator of the Thigh
This 3D Animation demonstrates how the piriformis changes its joint action from being a lateral rotator of hip joint to being a medial rotator.






