Week 2 Flashcards
(40 cards)
How many thoracic vertebrae are there?
12
Which thoracic vertebrae are considered typical?
T5-T8
What are demi facets?
Partial facets on thoracic vertebrae that, when combined, form a complete facet for rib articulation.
What is a distinguishing feature of thoracic vertebrae?
Facets for articulation with ribs and long spinous processes.
Which thoracic vertebrae resemble cervical vertebrae?
Upper 4 thoracic vertebrae.
Which thoracic vertebrae resemble lumbar vertebrae?
Lower 4 thoracic vertebrae.
What forms the costovertebral joint?
The head of the rib articulates with the body of a thoracic vertebra.
What forms the costotransverse joint?
The tubercle of the rib articulates with the transverse process of the corresponding vertebra.
Do T11 and T12 have costotransverse joints?
No, only costovertebral joints.
Do lumbar vertebrae have rib facets?
No.
How can you tell left vs. right rib using the costal groove?
The costal groove always points down.
At what angle are zygapophyseal joints best seen in the thoracic spine?
70 to 75 degrees oblique.
At what projection are intervertebral foramina seen in T-spine?
Lateral view.
Where is T1 located relative to external landmarks?
1 to 1.5 inches above the jugular notch.
Where is T7 located?
3 to 4 inches below the jugular notch.
Which compensating filter is used for T-spine radiography?
Trough filter.
Why is a lead blocker used in lateral T-spine imaging?
To prevent scatter radiation from reaching the image.
Why use orthostatic breathing during lateral T-spine?
To blur the lung markings.
Why have patient exhale during AP T-spine?
To reduce lung volume and prevent motion.
Why are knees flexed during T-spine AP projection?
To reduce thoracic curvature and straighten the spine.
How many thoracic vertebrae are there?
12
Which thoracic vertebrae are considered typical?
T5-T8
What are demi facets?
Partial facets on thoracic vertebrae that, when combined, form a complete facet for rib articulation.
What is a distinguishing feature of thoracic vertebrae?
Facets for articulation with ribs and long spinous processes.
