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 |