Centrally located gelatinous substance o annulzus

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Centrally located gelatinous substance o annulzus fibrosus dense connective tissue surrounding nucleus pulposus **disc herniation atlanto-axial joint synovial pivot joint btwn anterior arch of atlas (CI) and odontoid process (dens) of axis (CII) o rotational mvts atlanto-occipital joint synovial condyloid joint btwn sup articular facet of lateral mass of atlas (CI) and condyles of occipital bone head turning o flexion, extension, abduction, adduction, circumduction mvts LIGAMENTS SUPPORTING VERTEBRAL COLUMN Anterior longitudinal Along anterior surfaces of vertebral bodies Posterior longitudinal Along posterior surfaces of vertebral bodies Flava/ ligamentum flavum 34
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Link laminae of adjacent vertebrae Interspinous Stretch btwn spinous processes of adjacent vertebrae Supraspinous Joins tips of spinous processes of adjacent vertebrae nuchal ligament o proximal extension of supraspinous ligament in neck region fanning out in sagittal plane to attach to occipital bone 2. THORACIC CAGE Costovertebral Rib head articulates w/ thoracic vertebral bodies at corresponding level and vertebra above Rib tubercle articulates w/ transverse costal facet on corresponding thoracic vertebra Sternocostal Anterior end of true ribs (1-7) articulate w/ sternum via costal cartilages False ribs (8-12) articulate w/ sternum via costal cartilage of 7 th rib **All costovertebral and sternocostal joints are of synovial planar (freely movable, sliding mvts) except 1 st pair of sternocostal joints (synchondroses-limited mv, hyaline cartilage linked) Manubriosternal Symphysis joint (unified by fibrocartilage) btwn sternum body and manubrium (proximal) sternal angle in adults Xiphisternal Symphysis joint btwn sternum body and xiphoid process (distal) **manubriosternal and xiphisternal joints ossify with age Sternoclavicular Synovial saddle joint (flexion, extension, abduction, adduction, circumduction) btwn medial (sternal) end of clavicle and manubrium of sternum Only joint that articulates upper limb w/ axial sk articular disc 35
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o fibrocartilage disc separating articular surfaces of sternoclavicular joint 3. PELVIS Sacroiliac Synovial planar joints (sliding mv) btwn auricular surfaces of sacrum and hip bones Become fibrous w/ age Supported by anterior/ posterior sacroiliac ligaments transfer body wgt fm spine to lower limbs via hip joint Put weight on sacrum, twists sacrum anteriorly pulls on sacrotuberous and sacrospinous ligaments Pubic symphysis Symphysis joint (cartilaginous, uniting fibrocartilage) btwn pubic parts of R and L hip bones Hip bones are connected tg by 2 strong ligaments which convert greater and lesser sciatic notches of hip bones into the foramina (foramen pl) 1. sacrotuberous ligament Btwn sacrum and ischial tuberosity of hip bone 2. sacrospinous ligament Connects sacrum to ischial spine of hip bone JOINTS OF THE SKULL All skull bones articulate tg via sutures except mandible Temporomandibular condyloid synovial joint (flexion, extension, abduction, adduction, circumduction) btwn mandibular fossa of
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  • Fall '19
  • joints, Occipital bone, joint capsule, interphalangeal joints

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