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Week 4 Back and Vertebral Column Part 1
UC MED 2015 Week 4 0920-0923 Ch 3 Back and Vertebral Column Part I
44
Medical
Graduate
09/21/2011

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Term
external occipital protuberance
Definition
midline projection of the occipital bone
Term
another term for Inion
Definition
external occipital protuberance
Term
superior nuchal line
Definition
ridge that extends laterally from the inion to the mastoid process
Term
mastoid process
Definition
inferior projection of the posterolateral area of the temporal bone
Term
spine
Definition
large horizontal projection that crosses the upper end of the scapula
Term
acromion
Definition
large lateral expansion of the spine
Term
inferior angle
Definition
lowest point of the scapula
Term
costal facets
Definition
allow for articulation of thoracic vertebrae with ribs. There are 2 on each side of the body and 1 on each transverse process
Term
superior and inferior demifacets
Definition
costal facets on the vertebral body of thoracic vertebrae
Term
median sacral crest
Definition
vertical midline projection that substitutes for individual spinous processes; fusion of sacral spinous processes
Term
iliac crest
Definition
upper ridge for attachment of abdominal muscles
Term
posterior superior iliac spine (PSIS)
Definition
terminal expansion at the posterior end of the iliac crest
Term
vertebra prominens
Definition
spinous process of C7 vertebra, first prominence in the midline
Term
spinous process of T1
Definition
prominent spine immediately below C7, can be larger than C7
Term
erector spinae muscles
Definition
deep back muscles that look like vertical columns lateral to the midline
Term
natal cleft
Definition
groove between the buttocks
Term
sacral dimple
Definition
depression that marks the PSIS
Term
vertebral line
Definition
midline of the back, extending along the spinous processes
Term
paravertebral line
Definition
passes through the tips of the transverse processes of the vertebrae, a few inches lateral to the vertebral line
Term
scapular line
Definition
passes through the inferior angle of the scapula in the anatomical position, several inches lateral to the paravertebral line
Term
neck (cervical) region
Definition
area between the superior nuchal line of the skull and the first rib
Term
posterior thoracic (chest) wall
Definition
area of the rib cage, extending between the first and 12th ribs
Term
lumbar area
Definition
located between the lower end of the chest wall and the iliac crest
Term
spine region
Definition
midline area of the back that covers the vertebral column
Term
location of the upper edge of the first rib
Definition
begins between the C7 and T1 vertebral spines
Term
location of medial end of scapular spine
Definition
at the level of the T3 vertebral spine
Term
location of the inferior angle of the scapula (with limb adducted)
Definition
at the level of the T7 spine
Term
how to locate T12 vertebral spine
Definition
locate by counting down from the T7 spine
Term
intercostal spaces (interspaces)
Definition
gaps between adjacent ribs
Term
general area of sacrum
Definition
in triangle made between upper end of the natal cleft and the two sacral dimples
Term
intercristal line (supracristal plane)
Definition
an imaginary line drawn between the highest points of the iliac crests
Term
spinous process of L4 vertebra
Definition
located at the level of the intercristal line
Term
pars interarticularis
Definition
area between the superior and inferior articular processes
Term
sacral canal
Definition
continuation of the vertebral canal in the acrum
Term
sacral superior articular process
Definition
areas of articulation with inferior articular processes of last lumbar vertebra
Term
sacral promontory
Definition
Anterior projecting edge of the body of the S1 vertebra
Term
coccyx
Definition
tailbone; small triangular bone that is formed by fusion of four rudimentary coccygeal vertebrae
Term
Vertebral Body Osteoporosis
Definition
Net demineralization of bones reduces quality of the bone and cacuses atrophy of skeletal tissue. Diagnosed by diminished radiodensity.
Term
Laminectomy
Definition
Surgical excision of one or more spinous processes and the adjacent supporting vertebral laminae in a particular region of the vertebral column. Performed to gain access to the vertebral canal.
Term
Cervical Dislocation
Definition
Cervical vertebrae are dislocated without fracture. Cervical vertebrae are less tightly interlocked than other vertebrae because of their more horizontally oriented articular processes.
Term
Spondylolysis of C2
Definition
Fracture in the pars interarticularis (bony column formed by the superior and inferior articular processes of the axis). Spondylolysis occurs as a result of hyperextension of the head on the neck, rather than hyperextension of the head and neck (whiplash)
Term
lumbar spinal stenosis
Definition
stenotic (narrow) vertebral foramen in one or more lumbar vertebrae.
Term
caudal epidural anesthesia
Definition
a local anesthetic agent is injected into the fat of the sacral canal that surrounds the proximal protions of the sacral nerves. The anesthetic solution spreads superiorly and extradurally.
Term
injury of the coccyx
Definition
can be caused by abrupt fall onto the buttocks. There can be subperiosteal burising, fracture of the coccyx, or a fracture-dislocation of the sacrococcygeal joint.
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