PAS 407 EXAM 1 UPDATED ACTUAL Questions and
CORRECT Answers
33
7 cervical
How many vertebrae are there? 12 thoracic
5 lumbar
5 sacral
3-4 coccygeal
How many total joints in 23
vertebral column?
fibrocartilaginous discs
What separates the superior 24
vertebrae?
aka: intervertebral discs
Describe the general changes unfused vertebrae increase in size
in size of vertebrae as you go
down the vertebral column fused vertebrae decrease in size
anterior portion of vertebrae
principal support for vertebral column
Describe a general vertebral
outer shell made of dense compact bone and inside made of
body
spongy bone to decrease weight
highly vascular; containing large quantities of hematopoietic red
bone marrow
loss of horizontal trabeculae which
can cause the inner core to collapse
Describe how osteoporosis and result in a biconcave shape of
affects the trabeculae in a vertebrae
vertebrae
on radiograph, you will see visible
vertical striations
, when more and more weight is
supported by peripheral compact
bone collar overtime
Describe central collapse and
results in bowing of collar and
its effects
formation of osteophytes/bone spurs
posteriorly projecting bone spurs
might compress neural structures
Describe the function of the responsible for posterior protection of spinal cord
vertebral arch
1) pedicles
2) lamina
What structures make up the 3) spinous processes
vertebral arch? 4) transverse processes
5) superior and inferior articulating
processes
What structure anchors the Pedicles
vertebral arch to the vertebral
body?
vertebral foramen
What opening does the
vertebral arch and vertebral
body form?
"feet" of the arch
biconcave superior and inferior
Describe the structure of
surfaces called the superior and
pedicles
inferior vertebral notches which
allows them to form rounded foramen
(openings) when stacked together
CORRECT Answers
33
7 cervical
How many vertebrae are there? 12 thoracic
5 lumbar
5 sacral
3-4 coccygeal
How many total joints in 23
vertebral column?
fibrocartilaginous discs
What separates the superior 24
vertebrae?
aka: intervertebral discs
Describe the general changes unfused vertebrae increase in size
in size of vertebrae as you go
down the vertebral column fused vertebrae decrease in size
anterior portion of vertebrae
principal support for vertebral column
Describe a general vertebral
outer shell made of dense compact bone and inside made of
body
spongy bone to decrease weight
highly vascular; containing large quantities of hematopoietic red
bone marrow
loss of horizontal trabeculae which
can cause the inner core to collapse
Describe how osteoporosis and result in a biconcave shape of
affects the trabeculae in a vertebrae
vertebrae
on radiograph, you will see visible
vertical striations
, when more and more weight is
supported by peripheral compact
bone collar overtime
Describe central collapse and
results in bowing of collar and
its effects
formation of osteophytes/bone spurs
posteriorly projecting bone spurs
might compress neural structures
Describe the function of the responsible for posterior protection of spinal cord
vertebral arch
1) pedicles
2) lamina
What structures make up the 3) spinous processes
vertebral arch? 4) transverse processes
5) superior and inferior articulating
processes
What structure anchors the Pedicles
vertebral arch to the vertebral
body?
vertebral foramen
What opening does the
vertebral arch and vertebral
body form?
"feet" of the arch
biconcave superior and inferior
Describe the structure of
surfaces called the superior and
pedicles
inferior vertebral notches which
allows them to form rounded foramen
(openings) when stacked together
