Spine (spinal canal) Flashcards
(44 cards)
What is formed by openings in vertebrae when stacked upon each other
Spinal canal
what begins at the base of the skull and extends distally to the sacrum and contains cerebrospinal fluid
spinal canal
The _ begins at the medulla oblongata: it then passes through the foramen magnum and ens at the lower border of the 1st lumbar vertebrae
spinal cord
the tapered end of the spinal cord is called the
conus medullaris
in some persons the spinal cord may extend to _, the most common place for a lumbar puncture is _
L2
L3-L4
_ cervical vertebrae _ thoracic vertebrae _ lumbar vertebrae \_\_ sacrum (fused from 5 segments) _ coccyx (fused from 3-5 segments)
7 12 5 1 1
The cervical and lumbar regions have _ curves
concave
The thoracic and sacral regions have _ curves
convex
the thoracic and sacral curves develop after birth and are called
primary curves
the _ crave forms in the cervical region when a child begins to hold up the head
first compensatory
The _ curve forms in the lumbar region when a child first learns to walk
second compensatory
The _ of a vertebrae is the thick weight bearing part of the vertebrae
body
the _ extends posteriorly from the body
vertebral arch
The _ are the slightly moveable joints between the vertebral bodies
intervetebral joints
the posterior body and arch form an opening called the
vertebral foramen
when vertebra are stacked, they form an opening called the _ which protecys the spinal cord
vertebral canal
(froma superior view) the pedicles extend posteriorly from each side of the vertebral body; they form most of the sides of the
vertebral arch
the posterior portion of the vertebral arch is formed by the
laminae
The _ extends laterally from the junction of the pedicles and lamina
transverse process
The _ extends posteriorly from the union of the 2 lamina
spinous process
from a lateral view, additional parts seen on a lateral view are the rt. and lt.
superior and inferior articular processes
the zygopophyseal joints are formed by the
superior and inferior articulating processes
on each vertebrae, there is a superior vertebral notch and inferior vertebral notch located above and below each pedicle forming the
intervertebral foramina (rt. and lt)
There are _ disks located between each vertebrae except between C-1 and C-2
fibrocartlaginous disks (intervetebral disks)