Atypical Thoracic: T10 Flashcards
What is the height pattern of the T10 vertebral body?
the posterior height is greater than the anterior height by one to two millimeters
What joint classifications are identified at the vertebral body of T10?
- fibrous (amphiarthrosis) syndesmosis
- cartilaginous (amphiarthrosis) symphysis
- synovial plane (diarthrosis arthrodia)
What joints are identified at the vertebral body of T10?
- vertebral body to the longitudinal ligs. at the epiphyseal rims
- vertebral body to vertebral body via the intervertebral discs
- vertebral body to head of a rib (costocentral joint)
What are the examples of fibrous (amphiarthrosis) syndesmosis joints at the T10 vertebral body?
- superior and inferior epiphyseal rim to anterior longitudinal ligament
- superior and inferior epiphyseal rim to posterior longitudinal ligament
What are the examples of cartilaginous (amphiarthrosis) symphysis joints at the T10 vertebral body?
superior and inferior epiphyseal rims to intervertebral disc
What are the examples of synovial plane (diarthrosis arthrodia) joints at the T10 vertebral body?
superior costal demi-facet to inferior articular surface of the rib head (left and right)
How many synovial joints are formed at the vertebral body of T10?
2
How many symphysis joints are formed at the vertebral body of T10?
2
How many syndesmosis joints are formed at the vertebral body of T10?
typically 4 are identified (as many as 8 if the costocentral stellate/radiate lig. are included)
How many joints are typically formed at the vertebral body of T10?
typically 8 (12 if the costocentral stellate/radiate lig. are included)
How many costocentral joints are typically formed at the vertebral body of T10?
2
What synovial joint surfaces are present on the vertebral body of T10?
right and left superior costal facets
Which synovial joint surface is absent from the vertebral body of T10?
inferior costal demi-facets
What is the relationship between the vertebral body surface and the rib head/capitulum surface for the costocentral joint of T10?
the superior costal facet of T10 will joint with the inferior articular surface of the head of the 10th rib
How does the superior costal facet compare with those of T9?
it is larger
What feature will provide assistance in maintaining the stability of the intervertebral foramen at T10?
costocentral joint or ribs
Which rib-vertebral body combination is typically present at the intervertebral foramen for the ninth thoracic nerve?
- the inferior costal demi-facets of T9 may joint with the small superior articular surfaces on the head of the tenth rib
- the superior costal facets of T10 will joint with the large inferior articular surfaces on the head of the tenth rib
Which rib-vertebral body combination is typically present at the intervertebral foramen for the tenth thoracic nerve?
the superior costal facet of T11 will joint with the articular surface of the head of the 11th rib
The costocentral stellate/radiate lig. will attach to which segments at the T9 spinal nerve intervertebral foramen?
- vertebral body of T9
- vertebral body of T10
The costocentral stellate/radiate lig. will attach to which segments at the T10 spinal nerve intervertebral foramen?
- vertebral body of T10
- vertebral body of T11
Which muscles will attach to the vertebral body of T10?
none
What is the position and direction of the pedicle from the vertebral body at T10?
the pedicle arises from the upper third of the vertebral body and projects posterior and slightly laterally
What feature is very commonly observed on the lamina of T10?
para-articular process
What is present at the tip of the transverse process of T10?
transverse tubercle
What is present on the transverse tubercle of T10?
transverse costal facet
What part of the transverse process may be absent on T10?
transverse costal facet
What is the rib-transverse process relationship for T10?
the 10th rib articulates with the T10 transverse process
What is the orientation of the transverse costal facets for T10?
forward, outward, and upward
What ligaments support the costotransverse joint of T10?
- superior costotransverse lig.
- inferior costotransverse lig.
- lateral costotransverse lig.
Which costotransverse joint will the superior costotransverse lig. of T10 support?
11th rib costotransverse joint
The superior costotransverse lig. of rib 10 will attach to which segmental bony feature?
transverse process of T9
The superior costotransverse lig. of the transverse process of T10 will attach to which rib?
11th rib
The inferior costotransverse lig. of rib 10 will attach to which segmental bony feature?
transverse process of T10
The inferior costotransverse lig. of the transverse process of T10 will attach to which rib?
10th rib
The lateral costotransverse lig. of rib 10 will attach to which segmental bony feature?
transverse process of T10
The lateral costotransverse lig. of the transverse process of T10 will attach to which rib?
10th rib
What lig. attach to the transverse process of T10?
- intertransverse lig.
- capsular costotransverse lig.
- superior costotransverse lig.
- inferior costotransverse lig.
- lateral costotransverse lig.
Which muscles attach to the transverse process of T10?
- longissimus thoracis
- semispinalis thoracis
- multifidis
- rotator longus
- rotator brevis
- intertransversarii
- levator costarum longus
- levator costarum brevis
Which erector spinae muscle attaches to the transverse process of T10?
longissimus thoracis
Which erector spinae muscles will not attache to the transverse process of T10?
spinalis and iliocostalis muscles
Which transversospinalis muscles attach to the transverse process of T10?
- semispinalis thoracis
- multifidis
- rotator longus
- rotator brevis
What is the orientation of the superior articular facets of T10?
backward, upward, and lateral (BUL)
What is the orientation of the inferior articular facets of T10?
forward, downward, and medial (ForMeD)
What is the curvature of the superior articular facets of T10?
slightly convex
What is the curvature of the inferior articular facets of T10?
slightly concave
How may synovial joints are typically present at T10?
8
Identify the synovial joint surfaces typically present on T10.
- two superior costal facets
- two transverse costal facets
- two superior articular facets
- two inferior articular facets
How many synovial joint surfaces for ribs are typically present on T10?
4
Identify the synovial joint surfaces for ribs that are typically present on T10.
- two superior costal facets
- two transverse costal facets
Which rib related facet may be absent on T10?
inferior costal demi-facet
What is the orientation of the spinous process of T10?
posterior and slightly inferior, it will shorten and become more horizontal
What is the length of the spinous process of T10?
it will shorten significantly from the long spinous process of T9
What is the generic appearance of the spinous process of T10?
shorter and more horizontal than the T9 spinous process
What is the topographical indication of the spinous process of T10?
the skin often dimples or is depressed
What ligaments attach to the spinous process of T10?
- interspinous lig.
- supraspinous lig.
What joint classification is associated with lig. attaching to the T10 spinous process?
fibrous (amphiarthrosis) syndesmosis
What muscles attach to the spinous process of T10?
- trapezius
- latissimus dorsi
- multifidis
- rotator longus
- rotator brevis
- interspinalis
Which erector spinae muscles will not attach to the spinous process of T10?
- spinalis
- longissimus
- iliocostalis
Which transversospinalis muscles attach to the spinous process of T10?
- multifidis
- rotators
Which of the muscles of the 5 layers of the true back are present at the T10 spinous process?
- trapezius
- latissimus dorsi
- multifidis
- rotator longus
- rotator brevis
Which of the transversospinalis muscle groups is absent at the T10 spinous process?
semispinalis
Which muscle layers of the true back are represented at the T10 spinous process?
layers one and five
What joint classifications are present at T10?
- fibrous (amphiarthrosis) syndesmosis
- cartilaginous (amphiarthrosis) symphysis
- synovial plane (diarthrosis arthrodia)
At what parts of T10 will fibrous (amphiarthrosis) syndesmosis joints be observed?
- vertebral body
- lamina
- transverse process
- spinous process
At what part of T10 will cartilaginous (amphiarthrosis) symphysis joints be observed?
vertebral body
At what parts of T10 will synovial plane (diarthrosis arthrodia) joints be observed?
- vertebral body
- transverse process
- articular process