Exam 2 - Regions of the Vertebral Column (Atypical Thoracics) Flashcards
What joint classifications are identified at the vertebral body of T1?
fibrous (amphiarthorsis) syndesmosis
cartilaginous (amphiarthrosis) symphasis
synovial plane (diarthrosis arthrodia joint)
modified synovial saddle (diarthrosis sellar) is only observered as an anatomical variation
Which muscles attach to the vertebral body of T1?
longus colli muscle
Which spinal nerve-vertebral notch/incisure combination is present at T1?
C8 spinal nerve -the superior vertebral notch/incisure of T1
T1 spinal nerve - the inferior vertereal notch/incisure of T1
What ligaments support the costotransverse joint of T1?
the inferior costotransverse
lateral costotransverse ligaments
What ligament is absent at the costotransverse joint of T1
the superior costotransverse ligament
What muscle attach to the transverse process of T1?
longissimus thoracis L. cervicis L. Capitis semispinalis cervicis semispinalis capitis multifidis rotator longus rotator brevis intertransversarii levator costarum brevis
What is the orientation of the superior articular facet of T1?
They face Backward Upward Lateral
BUL
What is the orientation of the inferior articular facet of T1?
they face forward downward medial
ForMeD
What name is used to identify the topographical landmark at the base of the neck
the vertebral prominence
WHich vertebrae have been identified as forming the vertebral prominence
C6 C7 T1
What is the gender bias associated with T1 as the vertebral prominence?
males 9%
females 6%
What muscles attach to the spinous process of T1?
trapezius rhomboid minor serratus posterior superior splenius capitis spinalis thoracis spinalis cervicis spinalis capitis semispinalis thoracis multifidis rotator longus rotator brevis interspinalis
What ligaments attach to the transverse process of T9?
intertransverse capsular costotransverse superior costotransverse inferior costotransverse lateral costotransverse ligaments
The superior costotransverse ligament of T9 will attach to which rib?
the 10th rib
WHich muscles attach to the transverse process of T9?
longissimus thoracis semispinalis thoracis multifidis rotator longus rotator brevis intertransversarii levator costarum longus levator costarum brevis
Which is the last thoracic vertebra to have an inferior costal demifacet?
T9
What muscles attach to the spinous process of T9?
trapezius latissimus dorsi multifidis rotator longus rotator brevis interspinalis
How many synovial joints are formed at the vertebral body of T10?
2
What muscles attach to the transverse process of T10?
longissimus thoracis semispinalis thoracis multifidis rotator longus rotator brevis intertransversarii levator costarum longus levator costarum brevis
How many synovial joints are typically present at T10?
8
A dimpling or depression of the skin in the thoracis region is often characteristic of the location of which segment?
T10
What part of the transverse process is absent on T11
the transverse costal facet
What ligaments form the costotransverse joint of T11?
the superior costotransverse
slightly developed inferior costotransverse
lateral costotransverse ligaments
the superior costotransverse ligament of T11 transverse process will attach to which rib?
RIb 12
What muscles attach to the vertebral body of T11?
none
What muscles attach to the transverse process of T11?
longissimus thoracis semispinalis thoracis multifidis rotator longus rotator brevis intertransverarii levator costarum brevis
Which segment is the last to demonstrate an attachment for the levator costarum longus?
T10
b/c skips 2 ribs
How many synovial joints are typically present at T11?
6
What muscles attach to the spinous process of T11?
trapezius latissimus dorsi serratus posterior inferior ilocostalis lumborim spinalis thoracis multifidis rotator longus rotator brevis interspinalis
At which segments of the thoracic spine will the spinalis muscle not attach?
T9 and T10
Which muscles attach to the vertebral body of T12
psoas major
psoas minor
What does the superior tubercle of T12 represent?
the mammillary process of lumbar vertebrae
what does the inferior tubercle (the smallest tubercle) of T12 represent?
the accessory process of lumbar vertebrae
What ligaments form the costotransverse joint of the 12th rib?
the superior costotransverse ligament from T11 and the lumbocostal ligament from L1
Which costotransverse ligaments lack an attachment to T12?
capsular costotransverse
superior costotransverse
inferior costotransverse
lateral costotransverse
What muscles attach to the transverse process region of T12?
longissimus thoracis semispinalis thoracis multifidis rotator longus rotator brevis intertransversarii
Which segment is the alst to demonstrate a levator costrum brevis attachment?
T11
Which segment is the last to demonstrate a levator costarum longus attachment?
T10
What is the orientation of the superior articular facets of T12?
Backward Upward Lateral
BUL
What is the orientation of the inferior articular facets of T12?
Forward Downward lateral
FoLD
HOw many synovial joints are typically present at T12?
6
Which rib related facets is absent on T12?
the inferior costal demifacets
transverse costal facets
What muscles attach to the spinous process of T12?
trapezius latissimus dorsi serratus posterior inferior iliocostalis lumborum spinalis thoracis multifidis rotator longus rotator brevis interspinalis
Which erector spinae muscle is unique in its attachment to the T12 spinous process?
iliocostalis lumborum
