Quiz 3 HW Questions Flashcards
How many primary ossification centers appear in a typical vertebrae during gestation?
3
How many bony parts do typical vertebrae contain at birth?
3
Which vertebrae are still entirely cartilaginous at birth?
All coccygeal
The two halves of the neural/vertebral arch initially fuse with _______________.
each other
When do the neural/vertebral arches complete fusion with the centrum?
Around the 6th year of life
When do vertebral secondary ossification centers develop?
puberty
Where do vertebrae grow in height?
From the epiphyseal plates
What remnant structure results from the union between the anular epiphyses and the vertebral body?
Epiphyseal rim
The typical vertebrae has ____ secondary ossification centers.
5
T/F: Vertebral secondary ossification centers typically fuse by age 18 in both genders.
false
Is this a primary or secondary ossification center?
tip of SP
secondary ossification center
Is this a primary or secondary ossification center?
centrum
primary ossification center
Is this a primary or secondary ossification center?
tip of TP
secondary ossification center
Is this a primary or secondary ossification center?
L/R neural arches
primary ossification center
Is this a primary or secondary ossification center?
superior and inferior anular epiphyses
secondary ossification center
Which region of the spine is located at the most superior aspect of the spinal column?
cervical region
Which region of the spine consist of 5 fused vertebral segments in the adult?
sacral region
Which region of the spine consist of 12 vertebrae?
thoracic region
Which region of the spine is located at the most inferior aspect of the spinal column?
coccygeal region
Which region of the spine consist of 5 articulating vertebrae?
lumbar region
Which type of spinal column curve projects the convexity in a posterior direction?
kyphotic
Which type of spinal column curve is found in the cervical and lumbar regions?
lordotic
What is the name if the two bony processes that project posterolaterally in a horizontal plane at the junction between the lamina and the pedicle?
transverse process
What is the name of the bony process that projects from the posterior side of the vertebra at the most posterior point of the vertebral arch?
spinous process
What is the name of the ring surrounding the central cancellous bone on periphery of the superior and inferior surfaces of the adult vertebral body?
epiphyseal rim
What is the name of the process that arises superiorly from the junction between the lamina and pedicle?
superior articular process
What is the name of the large, cylindrical somewhat oval-shaped anterior portion of the vertebra?
vertebral body
What is the name of smooth surfaces of the articular processes?
articular facets
What space is formed by the vertebral arch and the posterior margin of the vertebral body?
vertebral foramen
What is the name of the two short stout cylindrical processes that project posteriorly from the vertebral body to unite with the laminae?
pedicles
What is the name of the two broad flat plates of bone that fuse in the midline at the posterior aspect of the vertebral arch?
laminae
What is the name of the space on the lateral aspect between adjacent vertebrae in an articulated vertebral column that spinal nerves pass through?
intervertebral foramen
What is the name of the shape formed by the pedicle that forms the inferior border of the intervertebral foramen?
superior notch
What is the name of the vertebrae that is shaped like a ring and does not have a vertebral body or spinous process?
atlas
What is the name of the small, rounded process on the outer aspect of the anterior arch of atlas?
anterior tubercle
What is the name of the small flat surface located in the midline on the inside of the anterior arch of atlas?
facet of dens
What is the name of the kidney-shaped concave surface on the superior aspect of the lateral masses?
superior articular facet
What is the name of the small, rounded process located in the center of the posterior arch on the outer surface?
posterior tubercle
What is the name of the ring that runs from the posterior aspect of each lateral masses?
posterior arch
What is the name of the groove located on the superior aspect of the posterior arch just posterior to the lateral masses?
groove for vertebral artery
What is the name of the skull bone that articulates with atlas?
occiput
What is the name of the two rounded protuberances located on either side of the foramen magnum?
occipital condyles
What is the unique feature of the C2 spinous process?
large bifid spinous process
What is the name of the tooth-like structure that projects superiorly from the C2 vertebral body?
dens
What is the general plane orientation of the inferior articular facet of C2?
horizontal