HN210 Study Guide - Final Guide: Lumbar Vertebrae, Thoracic Vertebrae, Cervical Vertebrae
Document Summary
Manubrium: top of sternum; articulates with clavicle (holds arm to rest of skeleton) Body: middle part; fxn: protects heart & lungs. 3 false ribs: attach to rib above it. 2 floating ribs: do not attach to sternum. Bones do not go all the way to the sternum attaches to costal cartilage which ataches to the sternum. Thorax = 12 (one vertebrae for every rib) Pedicle: 2 supports holding back pieces onto the body. Lamina: forms a roof; creates a protective hole (vertebral foramen) Facet: link up w/ vertebrae above & below to create facet joint. Intervertebral foramen: hole formed btwn 2 vertebrae; where spinal roots escape. Intervertebral disc: btwn 2 vertebral bodies; allows flexion & extension; really tough. Pedicles & lamina: produces vertebral foramen to protect spinal cord. Spinous processes: increase surface area for muscle attachment. Bi-fit spinous process (split at the end); attachment site forligamentum nuchae (base of skull to all c vertebrae; attaches at bi-fit spinous processes)
