220 likes | 402 Views
ANATOMY II.COMMITEE. JOINTS OF VERTEBRAL COLUMN. symphyses between vertebral bodies ( n=2 one above, and one below) synovial joints between articular processes ( n=4, two above and two below). Spinal nerve leaving out the vertebral column
E N D
ANATOMY II.COMMITEE
JOINTS OF VERTEBRAL COLUMN • symphyses between vertebral bodies • (n=2 one above, and one below) • synovial joints between articular processes • (n=4, two above and two below)
Spinalnerveleavingoutthevertebralcolumn throughtheintervertebralforamenformedbetweenarches of twoadjacentvertebrae
Inferiorarticularprocess Plane . Superiorarticularprocess
Uncovertebral joints (Luschka’s JOINTS) Unciof the bodies of C3 or 4C6 or 7 vertebrae .
between the laminae of adjacent vertebrae . tectorial membrane
Atlanto-occipital Yes, nodding+lateralflexion & rotation condyloid connects the anterior arch of the atlas to the anterior margin of the foramen magnum. . connects the posterior arch of the atlas to the posterior margin of the foramen magnum. Anterior/Posterioratlanto-occipital membranes
Atlanto-axial JOINTS No Plane Pivot Plane .
Atlanto-axial JOINTS No Plane Pivot Plane .
. Tectorialmembrane (superior continuation of the posterior longitudinal ligament) Cruciateligament Apicalligament-underthesuperiorlongitudinalband of thecruciateligament fromthe apexof the odontoid process to the anterior margin of the foramen magnum Alarligament fromodontoid process to the medial sides of the occipital condyles
PELVIS • Pelvicoutlet (inferiorpelvicaperture) • pubic archanteriorly • ischialtuberositieslaterally • sacrotuberous and sacrospinous ligamentsposterolaterally • tip of the coccyxposteriorly
PelvicInlet (SuperiorPelvicAperture) • Circularopeningbetweenabdominalcavity & pelviccavity • Formed • Anteriorlybypubicsymphysis • Posteriorlybysacrum (promontory in themiddle) • Laterallybyiliopectinealline[border of iliopubiceminence] .
Greater pelvis (False pelvis) • Part of thepelvissuperiortothepelvic inlet • boundedby • iliacalaeposterolaterally • anterosuperioraspect of the S1 posteriorly • Occupiedbyabdominalvisceraileumand sigmoid colon. .
Lesser pelvis (True pelvis) • betweenpelvic inlet & pelvicoutlet • boundedbypelvicsurfaces of thehipbones, sacrum, andcoccyx. • includestruepelviccavity& deepparts of theperineum. • Majorobstetricalandgynecologicalsignificance.
Weight from the axial skeleton: Sacroiliac ligaments ilia Femurs –during standing- Ischial tuberosities –during sitting- Sacrum is actually suspended between the iliac bones Firmly attached to iliac bones by posterior and interosseous sacroiliac ligaments.
male or funnel-shaped pelvis with a contracted outlet long, narrow, and oval shaped 41% of women widepelvis 2% of women
Diagonal conjugate (from inferior pubic lig. to promontory) Measured by palpating sacral promontory with the tip of the middle finger, using the other hand to mark the level of the inferior margin of the pubic symphysis on the examining hand. After the examining hand is withdrawn, the distance between the tip of the index finger (1.5 cm shorter than the middle finger) and the marked level of the pubic symphysis is measured to estimate the true conjugate, which should be 11.0 cm or greater.