Spinal Curvatures and Spinal Nerves Naming
Pictures showing spinal curvatures (primary vs. secondary) and naming system for spinal nerves Continue reading Spinal Curvatures and Spinal Nerves Naming
Month: September 2016
Comparison of vertebrae from 3 regions
Below are pictures pointing out the more obvious differences among the vertebrae from cervical, thoracic and lumbar regions. Continue reading Comparison of vertebrae from 3 regions
Summary of Human Tissues types
Summary of Cellular Transport
Lumbar vertebra
There are a total of 5 lumbar vertebra, out of which L5 is atypical (see here). Their characteristics include: Spinous processes are short and project posteriorly. Vertebral foramen is triangular, but smaller than those of the cervical vertebra. Articular facets … Continue reading Lumbar vertebra
Thoracic vertebra
There are a total of 12 thoracic vertebra. All of them articulate with rib. Their characteristics include: The body is usually taller than they are wide. The body has four demifacets on each side known as Superior and Inferior costal … Continue reading Thoracic vertebra
Cervical vertebra
There are a total of 7 cervical vertebra, out of which C1 (Atlas) and C2 (Axis) are atypical. Their characteristics include: The body is wider than than it is tall Spinous process is short and forked, except for C7. Vertebral … Continue reading Cervical vertebra
Rib
Ribs are classified as flat bones. They articulate with the thoracic vertebra at the transverse facet and superior+inferior costal facets of the vertebra body posteriorly and with the sternum anteriorly. The seven pairs of ribs that connect via costal cartilage … Continue reading Rib
Atlanto-axial Joint of C1 & C2
The atlanto-axial joint is composed of C1 (Atlas) and C2 (Axis). The dens/odontoid process of C2 articulate with the facet located in the anterior arch of C1. It is a pivot joint and primary movement is rotation. Continue reading Atlanto-axial Joint of C1 & C2
Atypical vertebra: L5
L5 is considered to be an atypical vertebra. It is the largest and strongest lumbar vertebra. Its notable feature would be the transverse processes are thick and fused to both the pedicle and the body. Continue reading Atypical vertebra: L5
Kit Ng, Ph.D. 