Flashcards in Unit 2 - VI. Regions of the Vertebral Column: Thoracic or Dorsal Region (Just Quizzies) Deck (152)
What features will allow discrimination between T2-T4 and T5-T8 segmental groups?
the vertebral body, the tranverse process, articular process and spinous process
What is the outline of the vertebral body of a typical thoracic from superior view?
What is the name given to the left side appearance of the vertebral body of T5-T8?
the aortic impression
What is the aortic impression?
the flattening of the superior and inferior epiphyseal rims on the left side of the vertebral body of T5-T8 which gives the vertebral body a less scalloped or less indented appearance on that side
What part of the vertebral body is most influenced by the aorta at T5-T8?
the left side superior and inferior epiphyseal rims
What is the height pattern of the typical thoracic vertebral body?
the posterior height is greater than the anterior height by one to two millimeters
What is the height pattern of intervertebral discs in the typical thoracic region?
the intervertebral discs are rather planar or flat with no apparent height difference between anterior and posterior heights
What is the principal cause of the posterior 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?
What is another way of naming a posterior curve pattern?
a kyphotic curve
What joint classifications are identified at the vertebral body of a typical thoracic?
fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis and synovial plane (diarthrosis arthrodia)
How many synovial joints are formed at the vertebral body of a typical thoracic?
How many symphysis joints are formed with the vertebral body of a typical thoracic?
How many joints are formed at the vertebral body of a typical thoracic?
typically ten (fourteen if the costocentral stellate/radiate ligaments are included)
What is the name given to the joint formed between the vertebral body and rib?
How many costocentral joints are formed at the vertebral body of a typical thoracic?
Which of the demi-facets on the vertebral body of a typical thoracic is larger?
the superior costal demi-facet
What feature will provide assistance in maintaining the stability of the intervertebral foramen in the typical thoracics?
the costocentral joint or ribs
What is the size relationship between the articulating surface of the head of the rib and the costal demi-facet surface?
the rib surface is greater than the costal demi-facet surface
Which muscle(s) is attached to the vertebral body of T2 or T3?
the longus colli
What is the angulation of the pedicle in the typical thoracic region?
ten to fifteen degrees posterolateral from the sagittal plane
Which X-ray view is used to see into the intervertebral foramen of a typical thoracic?
the lateral view
Which vertebral notch or incisure is said to be prominent?
the inferior vertebral notch or inferior vertebral incisure
What is the nerve-vertebral body relationship at the typical thoracic intervertebral foramen?
in the intervertebral foramen, the number of the nerve is the same as the number of the upper thoracic in the vertebral couple
What is the rib-vertebral body relationship at the typical thoracic intervertebral foramen?
in the intervertebral foramen, the number of the rib is the same as the number of the lower thoracic in the vertebral couple
What is overlap of the lamina called in the typical thoracic region?
In which plane will the size of the vertebral foramen of a typical thoracic be greatest?
the transverse plane, the vertebral transverse diameter
What is the distance between the transverse tubercles in the typical thoracic region?
from T2 each transverse diameter becomes shorter as the transverse processes angle more posterior
What is present on the transverse tubercle of a typical thoracic?
the transverse costal facet