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Neuroanatomy- Exam 2
N/A
20
Anatomy
Graduate
03/14/2010

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Cards

Term
How many bones are present before fusion?
Definition
33- 7 cervical, 12 thoracic, 5 lumbar, 5 sacral, 4 coccyx
Term
How many bones are present after fusion?
Definition
26- 7 cervical, 12 thoracic, 5 lumbar, 1 sacrum, 1 coccyx
Term
How many cervical vertebra are there?
Definition
7
Term
How many thoracic vertebra are there?
Definition
12
Term
How many lumbar vertebra are there?
Definition
5
Term
How many sacral vertebrae are there?
Definition
5 fused vertebare (before)
1 (after)
Term
How many coccyx vertebrae are there?
Definition
4 fused (before)
1 (after)
Term
What curve is present in fetus?
Definition
one primary curvature; concave anteriorly due to diff in height of btw ant and post aspect of vertebra.
Term
Function of the vertebral column?
Definition
posture, support of weight, protection of the SC and spinal nerves, and partial protection for thoracic and abdominal organs.
Term
Adult curvature?
Definition
primary- thoracic and sacrum
secondary- cervical and lumbar (due to height diff in IV discs)
Term
How is secondary curvature formed?
Definition
1. in the cervical, when baby tries to lift head.
2. in lumbar, when child goes from crawling to walking.
Term
What are the characteristics of typical vertebrae?
Definition
body, vertebral arch (pedicles + lamina), vertebral foramen = vertebral canal, spinous processes, tranvserse provesses, sup/inf articular processes, and vertebral nothces.
Term
What is spina bifida?
Definition
vertebral column is not fully developed which leads to protrusion of spinal cord. Folic acid can help!
Term
Characteristics of cervical vertebrae?
Definition
transverse formaen (vertebral a. and vein except for C7 - only the vein)
bifid SP
bifid TP - ant/post tubercles
large, triangular vertebral foramen
thin lamina
uncovertebral joints
shape of vert. body
Term
Atlas
Definition
no body- replaced by dens of C2
no SP or laminae - replaced by post arch of C1
Sup articular processes- concave with occ condyles
Term
Axis
Definition
dens process
thickest lamina - attachment of lig flavum
Term
Vertebra Prominens
Definition
most prominent SP
Does not bifuricate
small transverse foramen- only vertbral vein
Term
Characteristics of thoracic vert.
Definition
facets on TP to articulate with the ribs
has costotransverse joint and costovertebral joints.
NO foramina on TP
Term
Characteristics of lumbar vert.
Definition
much larger
quadrangular SP
mammilary processes and accessory processes
no foramina/facets in TP
increase in size going from cervical to lumbar (support weight)
after lumbosacral, decreases in size (no support)
Term
Characteristics of sacral vert
Definition
two surfaces: pelvic and dorsal
pelvic foramina -ventral rami of S1-S4
dorsal- median sacral crest, dorsal sacral foramina for dorsal rami of S1-S4 and sacral hiatus.
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