Questions And Answers Verified 100% Correct
The pelvis pivots in the femora. What ways does the pelvis move? (pelvis) -
ANSWER
Anteriorposterior, diagonally to tilt forward or back and laterally.
What muscles cause the upward pull posteriorly of the pelvis? (pelvis- anteriorposterior)
- ANSWER Erector spinae, quadratus lumborum, and other posterior back muscles.
What muscles cause the upward pull anteriorly of the pelvis? (pelvis anteriorposterior)
ANSWER Anterior abs, especially the rectus abdominis with its insertion on the
symphysis pubis and the external oblique with its attachment on the anterior iliac crest.
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What muscles create a downward shift in the pelvis posteriorly? (pelvis
anteriorposterior) - ANSWER Gluteus maximus and hamstrings with attachments on
the posterior ilium, sacrum, ischium
What muscles cause a downward pull anteriorly of the pelvis? (pelvis anteriorposterior) -
ANSWER Hip flexors, including the rectus femoris, tensor faciae latae and sartorius
with attachments to the anterior, superior and inferior spines of the ilium, the iliopsoas,
with attachment on the lumbar spine and inner surface of the ilium.
What muscles work to level the pelvis from a position of anterior pelvic tilt? - ANSWER
Anterior abs pulling up anteriorly and the hamstrings and gluteus maximus pulling down
posteriorly to level the pelvis.
What muscles work to cause anterior pelvic tilt? - ANSWER Low back muscles act
with the hip flexors (especially the psoas) with its direct pull from the lumbar spine to the
femur to tilt the pelvis down and forward.
How many main groups are there in anterior-posterior muscle opposition for the pelvis?
- ANSWER Four main groups. Upward pull anterior & posterior and downward pull
anterior and posterior.
How many main groups are there in lateral opposition of the pelvis? - ANSWER Two
main groups. Leg abductors and lateral trunk muscles.