Exam 2 - Regions of the Vertebral Column (Thoracis/Dorsal Region) Flashcards
Which thoracis segments are considered the typical thoracics?
T2-T8 segments
WHich thoracic segments are considered atypical?
T1
T9-T12
What features will allow discrimination between T2-T4 and T5-T8 segmental groups?
vertebral body
transverse process
articular process
spinous process
What is the name given to the left side of appearance of the vertebral body of T5-T8?
the aortic impression
What is the height pattern of the typical thoracic vertebral body?
the posterior height is greater than the anterior height by 1-2mm
What is the principal cause of the posterior (kyphotic) curve of the thoracic spine?
the vertebral body height differences
In terms of the anterior-posterior curves of the vertebral column, what direction will the thoracic spine face?
posterior
What is another way of naming a posterior curve pattern?
kyphotic curve
What joints are identified at the vertebral body of a typical thoracic?
vertebral body - ALL at the epiphyseal rims
vertebral body - PLL at the epiphyseal rims
vertebral body-vertebral body via the intervertebral discs
vertebral body - capitulum of a rib (costocentral joint)
What joint classifications are identified at the vertebral body of a typical thoracic?
fibrous (amphiarthrosis) syndesmosis
cartilaginous (amphiarthrosis) symphasis
synovial plane (diarthrosis arthrodia)
How many synovial joints are formed at the vertebral body of a typical thoracic?
4
How many symphasis joints are formed with the vertebral body of a typical thoracic?
2
How many joints are formed at the vertebral body of a typical thoracic?
10
14 if the costocentral stellate/radiate ligaments are included
Which of the demi-facets on the vertebral body of a typical thoracic is larger?
the superior costal demi-facet
What is the rib-vertebral bodycombination at the intervertebral foramen for the T6 never?
the inferior costal demi-facet of T6 will joint with the superior articular surface of the head of the 7th rib
the superior costal demifacet of T7 will joint with the inferior articular surface of the head of the 7th rib