Health Sciences 2300A/B Lecture Notes - Lecture 8: Aorta, Intercostal Muscle, Metacarpal Bones
31 Jan 2017
School
Department
Course
Professor
Document Summary
Lecture 8 (jan 31 2017) (cid:862)ba(cid:272)k(cid:863) to the verte(cid:271)rae: lu(cid:373)(cid:271)ar. Locate at the lower back, area, curvature exaggerate stress at that region. Much different than cervical and thoracic vertebrae, much larger, because of the weight. Vertebral foramen is more triangular than thoracic and cervical (circular) Arch is larger, thickening of the arch. Develop secondary curvature, need a perfect balance, muscles on both sides, attached to spinous. Transverse processes, no great attachment in the lumbar region. Have muscles attached to the transverse processes. Articular processes, both superior and inferior, fossa are different from thoracic region, in lumbar- more towards sagittal plate, allow extension of the spine. Inferior vertebral notch, not complete foramen, not a true foramen, not completely enclosed by bone. At a one time, 5 diff. bones. Coccyx- 3/5 bones abusing to one, tail bone, some animal use for balance, weapons, self-defense. Posterior- can see the facets, also articular processes.
