Concepts
Muscles perform this activity when controlling the degree of motion.
Eccentric Contraction
This receptor is said to fire as long as there is tension in the muscle.
Flower Spray
This muscle due to its attachment causes both Posterior Torsion axes and Sacral Rotation.
Ipsilateral Piriformis to the Axis involved.
What is the bony landmark that has the wing (ALA) of the sacrum as its floor.
Sacral Sulcus
The posterior position of this bone generates the environment where Posterior Torsions can occur.
Innimoinate
The nucleus pulposes position has what effect on vertebral motion in Fryet's second law.
Causes the vertebrae to rotate and side bend to the same side.
What occurs if the blood flow to a muscle is stopped for longer then 90 seconds.
Denaturation (Unraveling) of the protein hydrogen bonds.
What condition is created by an entire Multifidi Muscle being contracted?
FRS Condition
What is the bony landmark used to assess pubic alinement?
Pubic Tubercle.
The reason this muscle generates both the axis and the direction of torsion, is due to what?
Its origin is more inferior and anterior than its insertion on the sacrum.
The finding of a W4 in the resting position indicates what abnormality?
Why does slow stripping not cause a muscle to contract?
The spindle has time to adapt without an abrupt change in length.
This muscle is considered one of the primary impactors of lumbar-sacral dysfunctions.
Psoas Major
Three of these must be present in order for there to be a group dysfunction.
Transverse processes
The motion that primarily occurs in the lumbar spine is flexion and extension. What is the reason for this?
The facets are flatter and more sagittal and the vertebrae are wider (Deeper).
This form of contraction draws the two ends of a muscle together.
Concentric Contraction
When a muscle sustains contraction for extended periods the Purivic Acid changes to Lactic Acid. What impact does this have on breaking bonds?
The Lactic Acid is sticky and prevents ATP from binding to Myosin Heads as easily.
This muscle normally does not generate a pubic subluxation but can cause it to be maintained.
Pectineus
This bony landmark is essential in assessing dysfunctions of the pelvis iliac.
ASIS
What causes reverse muscle action of the quadriceps muscles?
The lower extremity is in closed back position (Weight Barring)
A muscle insertion is said to be the bone moving what is preventing the opposite attachment from moving?
The fixator muscles hold the anchored bone in position.
Decreases spindle tension, Blocked Blood Flow, Neuronal Adaptation and Increased GTO stimulation.
What muscle of the cervical is paired with one in the lumbar?
Longus Colli
This bony landmark of the sacrum is evaluated for its posterior or inferior positioning.
ILA
This muscle is said to eccentrically contract in ERS and Sacral Dysfunctions.
Quadratus Lumborum