Exam 1 - Basic Osteology of Vertebral Column Flashcards
What osseous modification is observed to the front of the antererior arch of C1?
the anterior tubercle
What is observed on the back of the anterior arch of C1?
the fovea dentis
What attaches behind the anterior arch of C1?
the lateral mass
What is the name of the rounded elevation on the medial aspect of the lateral mass of C1?
tubercle for the transverse atlantal ligament
What is identified in the midline at at the back of the posterior arch of C1?
the posterior tubercle
What superior surface modification of the posterior arch of C1 is present near the lateral mass?
groove / sulcus for the vertebral artery
What superior surface modification is present near the posterior tubercle of the posterior arch of C1?
the arcuate rim
What attaches to the arcuate rim of the posterior arch of atlas and to the superior articular proces of the lateral mass of atlas?
a complete ponticulus posticus
Based on the amount of bony union between the superior articular process and the arcuate rim of C1 what structure will form?
an incomplete ponticulus posticus
OR a complete ponticulus posticus
What names are given to the opening formed by the ponticulus posticus
arcuate foramen
OR retroarticular canal
What is observed on the undersurface of the posterior arch of C1?
the inferior vertebral notch
What is the name given to the anterior part of the transverse process of C1?
the costal element
What is the name given to the posterior part of the transverse process of C1?
the true transverse process
What is the distal most part of the transverse process of C1?
the posterior tubercle
What opening is identified in the transverse process of C1?
the transverse foramen
What unique vertebral body modification is characteristic of C2?
the dens or odontoid process
What surfaces are present on the odontoid process of C2?
facet for fovea dentis
groove for transverse atlantal ligament
attachment sites for the alar ligaments
attachment site for the apical-dental ligament
What feature is identified on the anterior surface of the vertebral body of C2?
the longus colli muscle attachment
What feature is identified on the anterior surface of the inferior epiphyseal rim of C2?
the anterior lip
What feature is identified on the posterior surface of the inferior epiphyseal rim of C2?
the posterior lip
What features are present at the at the lateral margins of the inferior epiphyseal rim?
right and left lateral grooves
What lies on the upper surface of the pedicle of C2?
the superior articular process
What is the location of the superior vertebral notch of C2?
on the lamina-pedicle junction
What feature is identified on the lower surface of the pedicle of C2?
the inferior vertebral notch or inferior vertebral incisure
What osseous parts of the typical cervical transverse process are present at C2?
costal element
posterior tubercle
true transverse process
What is the characteristic appearance of the C2 spinous process in humans?
it is bifid
What are the modifications of the superior epiphyseal rim of a typical cervical?
anterior groove
posterior groove
right and left uncinate processes
What are the modifications of the inferior epiphyseal rim of a typical cervical?
anterior lip
posterior lip
right and lefter lateral grooves
What attaches to the posterolateral margin and in the center of a typical cervical vertebral body?
the pedicle
What surface feature is located at the upper margin of the pedicle?
superior vertebral notch
What surface feature is located at the lower margin of the pedicle?
inferior vertebral notch
What bony feature is attached to the posterior end of the pedicle?
the articular pillar
What is located at the top of the articular pillar?
superior articular process
The superior process will provide support for for what bone feature?
the superior articular facet
What is located at the bottom of the articular pillar?
the inferior articular process
the inferior articular process will provide support for what bone feature?
the inferior articular facet
What is the name of the surface feature observed between the end of the articular pillar?
the groove / sulcus for the dorsal ramus of a cervical spinal nerve
What bone feature is attached to the posterior part of the articular pillar?
the lamina
What ligament attaches to the lamina of typical cervical?
ligamentum flavum
Ossification of the ligamentum flavum at the attachment site on the lamina will result in what feature?
para-articular processes
To what parts of the typical cervical vertebra is the transverse process attached?
the vertebral body and the articular pillar
List, in order, the osseous parts of the typical cervial vertebra transverse process beginning at the vertebral body.
costal element anterior tubercle costotransverse bar posterior tubercle trye transverse process
What is the distal modification of the costal element of a typical cervical vertebra?
anterior tubercle
What is the distal modification of the true transverse process of typical cervicals?
posterior tubercle
What bony feature connect the anterior and posterior tubercles of a typical cervical transverse process?
costotransverse bar or intertubercular lamella
What is the name given to the superior margin of the costotransverse bar?
sulcus for the ventral primary ramus of a cervical spinal nerve
What is the name given to the modification of the anterior tubercle of the C6 transverse process?
the carotid tubercle
What is the usual condition for the Caucasion typical cervical spinous process
they are bifid
What is the usual condition for the African-American typical cervical spinous process?
they are nonbifid
What is the osseous modification at the distal end of the spinous process?
the spinous tubercle
What surfaces are present on the superior epiphyseal rim of the vertebral body of C7?
anterior groove
posterior groove
right and left uncinate processes
What are the osseous parts of the transverse process of C7?
costal element anterior tubercle costotransverse bar posterior tubercle true transverse process
What are the features of the spinous process of C7?
long
horizontal
nonbifid
What feature will allow discrimination between T2-4 and T5-T8 segmental groups?
the vertebral body
transverse process
articular process
spinous process
On cranial view, what is the outline of the vertebral bodyfor the T2-T4 group?
the vertebral body will have bilaterally convex sides
On cranial view, what is the outline of the vertebral bodyfor the t5-T8 group?
the left side of the vertebral body will be flattened, the right side convex
What is the name given to the left side appearance of the vertebral body of T5-T8?
aortic impression
What part of the vertebral body is most influenced by the aorta at T5-T8?
the left side superior
and inferior epiphyseal rims
What synovial joint surfaces are present on the vertebral body of a typical thoracic?
the right and left superior and the right and left inferior costal demi-facets
Which of the demi-facets on the vertebral body of a typical thoracic is larger?
the superior costal demi-facet
What is the position and direction of the pedicle from the typical thoracic vertebral body?
the pedicle aries from the upper third of the vertebral body and projects posterior and slightly laterally
What is the appearance and position of the lamina in a typical thoracic?
the lamina is short
broad and thick and lies next to the spinous process
How do the transverse diameters of the articular processes compare in the T2-T4 region?
the superior articular process transverse diameter is greater than the inferior articular process transverse diameter for a give segment
How do the transverse diameters of the articular processes compare in the T5-T8 region?
the superior articular process transverse diameter is the same or equal to the inferior articular process transverse diameter for a give segment
What is the angulation of the spinous process of T2-T4?
the undersurface of T2-T4 spinous processes will angle up to forty degrees from horizontal plane