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OMM II midterm
Vocab
Question | Answer |
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ASIS (anterior superior iliac spine) compression test: | 1. A test for lateralization of somatic dysfunction of the sacrum, innominate or pubic symphysis. 2. Application of a force through the ASIS into one of the pelvic axes to assess the mechanics of the pelvis. |
backward bending test: | 1. This test discriminates between forward and backward sacral torsion/rotation. 2. This test discriminates between unilateral sacral flexion and unilateral sacral extension. |
counternutation: | Posterior movement of the sacral base around a transverse axis in relation to the ilia. |
sacral extension, | posterior movement of the base of the sacrum in relation to the ilia. |
sacral flexion, | anterior movement of sacral base in relation to the ilia. |
seated flexion test, | a screening test that determines the side of sacroiliac somatic dysfunction (motion of the sacrum on the ilium). |
standing flexion test, | a screening test that determines the side of iliosacral somatic dysfunction (motion of ilium on the sacrum). |
ilium: | the expansive superior portion of the innominate (hip bone or os coxae). |
iliosacral motion: | Motion of one innominate (ilium) with respect to the sacrum. Iliosacral motion is part of pelvic motion during the gait cycle |
innominate: | The os coxae is a large irregular shaped bone that consists of three parts: ilium, ischium and pubis, which meet at the acetabulum, (femoroacetabular) joint. Also called the innominate bone or pelvic bone. |
innominate rotation: | Rotational motion of one innominate bone relative to the sacrum on the inferior transverse axis. |
anterior innominate rotation, | a somatic dysfunction in which the anterior superior iliac spine (ASIS) is anterior and inferior to the contralateral landmark. The innominate (os coxae) moves more freely in an anterior and inferior direction, and is restricted from movement in a posteri |
inferior innominate shear, | a somatic dysfunction in which the anterior superior iliac spine (ASIS) and posterior superior iliac spines (PSIS) are inferior to the contralateral landmarks. The innominate (os coxa) moves more freely in an inferior direction, and is restricted from mov |
inflared innominate, | a somatic dysfunction of the innominate (os coxae) resulting in medial positioning of the anterior superior iliac spine (ASIS). The innominate moves more freely in a medial direction, and is restricted from movement in a lateral direction. |
outflared innominate, | a somatic dysfunction of the innominate (os coxae) resulting in lateral positioning of the anterior superior iliac spine (ASIS). The innominate moves more freely in a lateral direction, and is restricted from movement in a medial direction. |
posterior innominate rotation, | a somatic dysfunction in which the anterior superior iliac spine (ASIS) is posterior and superior to the contralateral landmarks. The innominate (os coxae) moves more freely in a posterior and superior direction, and is restricted from movement in an ante |
superior innominate shear, | a somatic dysfunction in which the anterior superior iliac spine (ASIS) and posterior superior iliac spines (PSIS) are superior to the contralateral landmarks. The innominate (os coxa) moves more freely in a superior direction, and is restricted from move |
nutation: | Nodding forward;anterior movement of the sacral base around a transverse axis in relation to the ilia. |
pelvic rotation: | Movement of the entire pelvis in a relatively horizontal plane about a vertical (longitudinal) axis. |
pelvic sideshift: | Deviation of the pelvis to the right or left of the central vertical axis as translation occurs along the horizontal (z) axis. Usually observed in the standing position. |
pelvic tilt: | Pelvic rotation about a transverse (horizontal) axis (forward or backward tilt) or about an anterior- posterior axis (right or left side tilt). |
pelvis: | Within the context of structural diagnosis, the pelvis is made up of the right and left innominates, (hip bone or os coxae) the sacrum and coccyx. |
rotation of sacrum, | movement of the sacrum about a vertical (y) axis (usually in relation to the innominate bones). |
sacral base: | 1. In osteopathic palpation, the uppermost posterior portion of the sacrum. 2. The most cephalad portion of the first sacral segment (Gray’s Anatomy). |
sacral movement axis: | any of the hypothetical axes for motion of the sacrum. |
anterior-posterior (x) axis, | axis formed at the line of intersection of a sagittal and transverse plane. |
inferior transverse axis (innominate), | the hypothetical functional axis of sacral motion that passes from side to side on a line through the inferior auricular surface of the sacrum and ilia, and represents the axis for movement of the ilia on the sacrum. 2. A term described by Fred Mitchell, |
longitudinal axis, | the hypothetical axis formed at the line of intersection of the midsagittal plane and a coronal plane, See sacral motion axis, vertical (y) axis longitudinal. |
middle transverse axis (postural), | the hypothetical functional axis of sacral nutation/counternutation in the standing position, passing horizontally through the anterior aspect of the sacrum at the level of the second sacral segment. 2. A term described by Fred Mitchell, Sr, DO. |
oblique axis (diagonal), | a hypothetical functional axis from the superior area of a sacroiliac articulation to the contralateral inferior sacroiliac articulation. It is designated as right or left relevant to its superior point of origin. 2. A term described by Fred Mitchell, Sr |
postural axis, | See sacrum, middle transverse axis (postural). |
respiratory axis, | See sacrum, superior transverse axis (respiratory). |
superior transverse axis (respiratory), | the hypothetical transverse axis about which the sacrum moves during the respiratory cycle. It passes from side to side through the articular processes posterior to the point of attachment of the dura at the level of the second sacral segment. Involuntary |
transverse (z) axes, | axes formed by intersection of the coronal and transverse planes about which nutation/counternutation occurs. |
vertical (y) axis (longitudinal), | the axis formed by the intersection of the sagittal and coronal planes. |
sacrum, somatic dysfunctions of: | any of a group of somatic dysfunctions involving the sacrum. These may be the result of restriction of normal physiologic motion or trauma to the sacrum. |
sacral sulcus: | A depression just medial to the posterior superior iliac spine (PSIS) as a result of the spatial relationship of the PSIS to the dorsal aspect of the sacrum. |
sacral torsion: | 1. A physiologic function occurring in the sacrum during ambulation and forward bending. 2. A sacral somatic dysfunction around an oblique axis in which a torque occurs between the sacrum and innominates. The L5 vertebra rotates in the opposite direction |
sacroiliac motion: | Motion of the sacrum in relationship to the innominate(s) (ilium/ilia). |
sacrum, | inferior lateral angle (ILA) of: The point on the lateral surface of the sacrum where it curves medially to the body of the fifth sacral vertebrae (Gray’s Anatomy). |
screen: | The initial general somatic examination to determine signs of somatic dysfunction in various regions of the body. |
shear: | An action or force causing or tending to cause two contiguous parts of an articulation to slide relative to each other in a direction parallel to their plane of contact |
spring test: | 1. A test used to differentiate between backward or forward sacral torsions/rotations. 2. A test used to differentiate bilateral sacral extension and bilateral sacral flexion. 3. A test used to differentiate unilateral sacral extension and unilateral sacr |
symphyseal shear: | The resultant of an action or force causing or tending to cause the two parts of the symphysis to slide relative to each other in a direction parallel to their plane of contact. It is usually found in an inferior/superior direction but is occasionally fou |
torsion: | 1. A motion or state where one end of a part is twisted about a longitudinal axis while the opposite end is held fast or turned in the opposite direction. 2. An unphysiologic motion pattern about an anteroposterior axis of the sphenobasilar symphysis/sync |