Osii Exam 1 Flashcards
What are the 4 major true pelvic ligaments
Iliolumbar, sacrospinous, sacrotuberous, sacroiliac
Which pelvic ligament is responsible for stabilizing L5
Iliolumbar
Which pelvic ligament is part of the coccygeus muscle
Sacrospinous
Gluteus maximus attaches to which pelvic ligament
Sacrotuberous
Tendon of biceps femoris attaches to which pelvic ligament
Sacrotuberous
Which pelvic ligament has these three components: anterior,, interosseous, and dorsal
Sacroiliac
What is teh joint classification of pubic symphysis
Secondary cartilagenous (fibrocartilage)
Adductors limit pelvic motion in which direction
Laterally
What hip. Motion is produced by piriformis, quadratus femoris and gemelli mm
External rotation
The piriformis performs what motion when teh hip is flexed
Abduction
The piriformis performs what motion when teh hip is extended
External rotation
How do you determine laterality for innominate dysfunction
Standing flexion, pelvic compression
Whats the term describing. Holding an object. By pressure on sides. (Part of what holds pelvis together)
Force closure (ligaments)
Whats teh term describing how stacking can allow a structure to freestand if its in arch formation
Form closure (articulation of pelvis with legs)
which sacroiliac ligaments are stronger
Dorsal
Which ligament plays a small. Role in stabilizing L5 by blending in with teh main support: iliolumbar
Sacroiliac (lumbosacral) ligament
Which pelvic ligaments work together to prevent posterior superior rotation of sacral apex around transverse axis
Sacrospinous / sacrotuberous
Which major back muscles attach to sacrum
Erector spinae and multifidus
Which mm attach to innominates
Obliques , quadratus lumborum
What spinal cord component attaches to the sacrum at teh level of S2
Dura
Where does the dura of spinal cord attach at its cranial end
Foramen magnum (C1-2)
Nodding forward/anterior movement of the sacral base
Nutation
Nutation occurs during which sphenobasilar motion
Extention
Posterior movement of sacral base around transverse axis
Counternutation
Counternutation occurs during which sphenobasilar motion
Flexion
Sacral base. Should move. __ during inhalation
Posteriorly
Bilateral deep sulci and bilateral posterior ILA’s indicate
Bilateral sacral flexion
Restriction to inhalation of sacrum indicates
Flexion dysfunction
Lumbar lordosis is decreased in which bilateral sacral dysfunction
Extension
Seated flexion R, sulcus deep on R, ILA inferior on R, lumbar spring negative, SB restricted to L
Unilateral flexion of R sacrum
R seated flexion, R shallow sacral sulcus, ILA superior on R, positive lumbar spring, SB restricted toward R
R unilateral extension
Seated flexion test is positive on the side ____ for torsions
Opposite
R on R torsion would have what result for 4 point passive test
Restricted to posterior rotation about the R axis
L5 rotates ___ during a right on right torsion
L
Golgi tendon. Organs. Are mechanoreceptors that send. Afferents. To CNS in which group
1b
Golgi tendon organ detect skeletal muscle ___ and send this to CNS
Tension
Muscle spindle detect skeletal muscle ___ and send this to CNS
Stretch
In golgi tendon reflex, the 1b fiber from golgi tendon organ synapse with inhibitory interneurons in the spinal cord which inhibit who
Alpha motor neurons
Whats teh outcome of golgi tendon organ activation
Reflex relaxation of the muscle
Name describing neuromuscular bundle in refractory state immediately after contraction
Post isometric relaxation
Passive stretch can occur without ___ right after isometric contraction because neuromuscular bundle enters a refractory state
Reflex opposition
Term: to lengthen a shortened muscle
Reciprocal inhibitionq
Direct passive technique performed in direction of restrictive barrier
HVLA
Direct active technique performed in direction of restrictive barrier
ME
What are teh components fo a vertebral segment
Vertebra above and below and disc in between
If not properly locked into place/localized to restrictive barrier then an HVLA thrust will dissipate and increase risc for what
Iatrogenic side effect
Sudden change. In _____ during HVLA. Activates the golgi tendon organ to inhibit muscle activity
Length/tension
Which pelvic ligament. Stabilizes anterior motion and. Prevents posterior superior rotation
Sacrotuberous and sacrospinous
Respiratory motion occurs at which. Transverse. Axis and which sacral level
Superior axis S1
Rotation of iliums about the sacrum occurs at which sacral level
Inferior transverse axis S3
