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Vertebral Column
7.4--Vertebral Column
| Term | Definition |
|---|---|
| CONVEX CURVES | CERVICAL AND LUMBAR (BULGE OUT |
| CONCAVE CURVES | THORACIC; SACRAL; (CUP IN) |
| PRIMARY CURVE | DEVELOP FIRST; THORACIC AND SACRAL |
| SECONDARY CURVE | CERVICAL AND LUMBAR |
| INTERVERTEBRAL DISCS | 2ND CERVICAL VERTEBRA TO SACRUM; FOUND BETWEEN ADJACENT VERTEBRAE. ABSORB SHOCK AND ALLOW MOVEMENTS |
| ANNULUS FIBROSUS; NUCLEUS PULPOSUS | FIBROCARTILAGE EXTERIOR OF INTERVERTEBRAL DISK; PULPY INSIDE OF INTERVERTEBRAL DISK |
| CERVICAL VERTEBRAE | 7; MOST VARIED. FIRST 2 ARE DIFFERENT. ARCHES LARGER, BUT BODIES SMALLER. VERTEBRAL FORAMINA ARE LARGEST |
| THORACIC VERTEBRAE | 12 |
| LUMBAR VERTEBRAE | 5 |
| SACRUM | FUSED (5) SACRAL VERTEBRAE |
| COCCYX | TAIL; FOUR FUSED COCCYGEAL VERTEBRAE |
| VERTEBRAL BODY | LARGEST PORTION; FORMS ANTERIOR BLOCKLIKE MASS OF BONE; WEIGHT BEARING. DISKS LIE BETWEEN VERTEBRAL BODIES |
| VERTEBRAL ARCH | EXTENDS POSTERIORLY FROM VERTEBRAL BODY; SURROUNDS SPINAL CORD. NUMEROUS BONY PROJECTION. PEDICLES FORM BASE |
| PEDICLES AND LAMINAE | THICK PROCESSES, BASE OF ARCH; FLAT PARTS THAT JOIN POSTERIOR PORTION. COMBINE TOGETHER |
| VERTEBRAL FORAMEN | LIE BETWEEN ARCH AND BODY; CONTAINS SPINAL CORD. MAKES UP VERTEBRAL CANAL |
| VERTEBRAL NOTCES | SUPERIOR AND INFERIOR INDENTATIONS ON PEDICLES |
| INTERVERTEBRAL FORAMEN | OPEN SPACE LEFT BETWEEN STACKING VERTEBRAL NOTCHES ON POSTERIOR SIDE OF VERTEBRAE PERMITS PASSAGE OF SINGLE SPINAL NERVE |
| SUPERIOR ARTICULAR FACET, SUPERIOR FACET, AND INFERIOR ARTICULAR FACET | ALL HAVE CARTILAGE FOR JOINT FORMATION. |
| TUBERCLE OF RIB ARTICULAR FACET | FORMS JOINT WITH RIB |
| TRANSVERSE PROCESS | ONE ON EACH SIDE; JUT OUT |
| SPINOUS PROCESS | SPINE |
| SUPERIOR ARTICULAR PROCESSES | 2X; FORM JOINTS WITH 2 INFERIOR ARTICULAR PROCESS SUPERIOR TO THEM |
| TRANSVERSE FORAMINA | FORAMINA ON THE TRANSVERSE PROCESSES OF VERTEBRAL ARCHES ON CERVICAL VERTEBRAE |
| BIFID | BRANCHING OF SPINAL PROCESS INTO TWO PROJECTIONS |
| ATLAS | C1; RING BONE THAT SUPPORTS HEAD. HAS ANTERIOR AND POSTERIOR ARCHES WITH LARGE LATERAL MASSES. LACKS SPINOUS PROCESS AND VERTEBRAL BODY |
| SUPERIOR ARTICULAR FACETS (ATLAS) | ARTICULATE WITH OCCIPITAL CONDYLES TO FORM ATLANTO-OCCIPITAL JOINT |
| AXIS | C2; VERTEBRAL BODY; FEATURES DENS (TOOTH) PROJECTING FROM BODY. PROVIDES PIVOT FOR HEAD TO TROTATE |
| ATLANTO-AXIAL JOINT | ARTICULATION BETWEEN AXIS AND ATLAS VIA DENS OF VERTEBRAL BOY |
| VERTEBRA PROMINENES | AKIN TO A THORACIC VERTEBRAE |
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