1- Back Review Flashcards
How many separate vertebrae make up the vertebral column?
24
Of the 24 separate vertebrae; they are split into 3 regions. What are the regions and how many vertebrae are in each regions
Cervical: 7 Thoracic: 12 Lumbar: 5
The base of the spine is composed of 5 segments fused together, this is known as the what?
Sacrum
What structure articulates with the 2 annominate bones of the pelvis
Sacrum
These vertebrae articulate with the ribs.
Thoracic
What are the normal curves of the spine?
Cervical Lordosis Thoracic Kyphosis Lumbar Lordosis
These intervertebral structures provide shock absorbance, congruency and a supply of nutrients.
IV Disc: Intervertebral Disc
A spinal segment ( ie L2-L3) consists of what? how many vertebrae and IV disc and how many end plate
2 vertebrae and 1 IV Disc and 2 end plates one above and one below
Anteriorly in vertebrae, this cylindrical mass of the bone is known as the
Body of the vertebrae
What does the body of the vertebrae act as?
Support the weight of the segments above it
The 3 bony projections of a vertebrae are:
Transverse processes, spinous process, and articular processes aka facet joints
When the articular processes of vertebrae join, they form this synovial joint.
Facet joint or zygopophaseal joint
Head rotation occurs primarily where?
Upper CS, C1-C2 (Altlanto-Axial Joint)
Head flexion, extension and lateral flexion primarily occurs where?
Upper CS, Occipital-Atlas (Atlanto-Occipital Joint)
Cervical Spine rotation primarily occurs in this general area.
Upper Cervical Spine
Cervical Spine extension, lateral flexion, flexion primarily occurs in what general area?
Mid to lower Cervical Spine
When the head protrusion occurs, the upper cervical spine ______ and the lower cervical spine______
extends, flexes
When the head retraction occurs, the upper cervical spine ________ and the lower cervical spine _______
Flexes, extends
The spine in anatomy is know as the _________ _________ and/or _________ ___________
spinal column
and/or
vertebral column
Consists of how many separate vertebrae?
this included the fused sacrum and coccyx
24 separate vertebrae
Name all the vertebrae regions and How many of each segments in the vertebrae
7- Cervical
12- Thoracic
5- Lumbar
5- Fused sacral
3-4- fused coccygeal
What are the motions that occur in the spine?
Flexion/Extension
Sidebending
Rotation
***at each regions there are different quantities of motion
Name the two normal curvatures of the spine and breif description
Lordosis- concave posteriorly
Kyphosis- convex posteriorly
Where is Lordosis and Kyphosis located in the vertebral column
Cervical/Lumbar- Lordosis
Thoracic/Sacral/Coccygeal- Kyphosis
Lateral curvature of the spine is known as.
Scoliosis
The highest cervical vertebra articulates with the ___________ ___________ of the cranium
Occipital condyles
The _______ vertebrae articulate with the ribs
thoracic
the ___________ vertebrae are designed for extensive weight bearing and muscle attachment
Lumbar
The __________ articulates with the _____(#) innominate bones at the sacro-iliac joints to form the pelvis
Sacrum
2#
All vertebrae from _____ to _____ will possess common elements of a vertebrae
C2 to L5
LABEL this Common Vertebrae
A- Vertebral Body
B- Pedicle
C- Lamina
D- Vertebral Arch
E- Articular Process
F- Transverse Process
G- Spinous Process
H- Inferior Articular Process
Label the Sacrum (ant.)
A- Promotontary
B- Superior Articular Process
C- Wing of Sacrum
D- Lateral Part
E- Transverse Line
F- Sacrococcygeal Joint
G- Anterior Sacral Foramina
H- Apex of Sacrum
I- Coccyx
Label the Sacrum (pos.)
A-Sacral Canal
B- Superior Articular Facet
C- Sacral Tuberosity
D- Auricular Surface
E- Lateral Sacral Crest
F- Median Sacral Crest
G- Medial Sacral Crest
H- Sacral Hiatus
I- Sacral Cornua
J- Sacrococcygeal Joint
K- Coccyx
L- Coccygeal Cornu
M- Posterior Sacral Foramina
N- Lateral Part
The Sacrum will articulate the Right Innominate with the _______ ________
Auricular Surface
Iliac Tuberosity is an attachment site for the _________ ______
Iliolumbar ligament
ASIS and PSIS should aligh with ___ Spinous Process and each other
S2
Iliac Crest should align between ____ and ____
L4 and L5
Two Innominate bones are joined Anteriorly by the _________ _________ on Symphyseal Surfaces
Public Symphisis
The ________ will articulate the ___________ on its Auricular Surface
Sacrum and Left/RIght Innominate
_______ ______ is an attachement site for the Iliolumbar Ligament
Iliac Tuberosity
_____ and ____ should align with S2 spinous process and each other
ASIS and PSIS
_____ _____ should align between L4 and L5
Iliac crest
Label the Right Innominate
A- Iliac Crest
B- Iliac Fossa
C- Anterior Superior Iliac Spine
D- Anterior Inferior Iliac Spine
E- Iliac Tuberosity
F- Auricular Surface of Ilium
G- Symphyseal Surface
Lumbar Vertebra:
has a massive body for ________ ________
weight bearing
Lumbar Vertebra:
has a ________ spinous processes
Blunt
Lumbar Vertebra:
_______ __________ on superior articular process for muscle attachment
Mammilary processes
Lumbar Vertebra:
Mammilary processes on superior articular process for ________ _______
muscle attachment
Lumbar Vertebra:
________ ________ are oriented in the sagital plane- allowing for the largest degree of flexion/extension in the spine with a smaller degree of lateral flexion
Articular Facets
Lumbar Vertebra:
Articular facets are oriented in the __________ plane
sagital plane
Lumbar Vertebra’s articular facets in the sagital plane to allow for the largest degee of ________/________ in the spine with a smaller degree of __________ _________
flexion/extension
lateral flexion
Label the Lumbar Vertebra
A- Spinous process
B- Superior articular facet
C- Mammilary Process
D- Transverse process
E- Superior articular process
F- Superior vertebral notch
G- Body
H- Vertebral foramen
I- Vertebral Arch
J- Accessory Process
Label the Lumbar vertebra
A- body
B- superior articular process
C- Mammilary process
D- Transverse process
E- Spinous process
F- Inferior Articular Facet
G- Inferior articular process
H- Inferior Vertebral notch
The two costal facets of thoracic vertebra is called what
Demi-facets
Where are the two Demi-facets of the thoracic vertebra located?
along the posterior aspect of the vertebral bodies from T2-T10
Which Thoracic vertebra has demi-facets and which have just one costal facet?
T2-T10 have demi-facets
T1, T11-12 have one costal facets
Where on the thoracic vertebra are the transverse costal facets located?
on the transverse processes
What plane is the thoracic articular facets located?
coronal plane
The coronal plane of thoracic articular facets allow for what movements?
Rotation and sidebending
Some thoracic vertebrae possess downward sloping spinous processes which provide_________________________ and _______________________
provide protection to the spinal cord and limits extension ROM
What further limits the thoracic spine in further motion besides the spinous processes?
the rib attachments
Label the Thoracic Vertebrae
Lable the Thoracic
All cervical vertebrae possess transverse foramina within their transverse prossesses to house the _______ _______
vertebral artery
all cervical vertebrae possess __________ _______
transverse foramina
Articular facets of the cervical vertebra are __________ to both the sagital and coronal plane
oblique
Articular facets are oblique to both the __________ and __________ planes
sagital and coronal
The most mobility in the vertebral column is found in the ______ region
cervical
What movements occur in the cervical spine?
Flexion, Extension, lateral flexion, and rotation
The mobility into flexion and extension in the cervical vertebra is further enhacned due to what?
the convex/concave relationship of the superior vertebral body on the inferior, in C3- C6
Uncovertebral joints of the cervical vertebra is also known as what?
Joints of Luschka
C2-C6 have _______ _______ __________
bifid spinous processes
____-____ have bifid spinous processess
C2-C6
____ aka vertebral prominens has the most posteriorly pronounced spinous process
C7
Label Cervical Vertebra
Atlas aka C1 has an absence of a ________ ________ and ______ _______
spinous process and vertebral body
the atlas, instead of a spinous process and vertebral body there are: ______ ______ and ______ _______ with corresponding _____________
anterior arches and posterior arches with corresponding tubercles
________ _______ ________ are kidney bean shaped and concave part of Atlas
superior articular facets
________ _______ _________ are oval shaped and concave part of Atlas
inferior articular facets
Label the Atlas
Axis aka C2 possesses all the elements of a standard cervical vertebra however it has the _____ or ________ ________ which sits superior to the body
Dens or Odontoid Process
Label
Label
What does AO Joint stand for?
Atlanto-Occipital Joint
The AO Joint is a specialed joint formed between a pair of _________ __________ of cranium and a pair of ________ ________ _________ of C1
Occipital Condyle
Superior articular facets
The AO Joint is categorized as what sort of joint?
Bi-condyloid synovial joint
Name the ligaments of the AO Joint (2)
1- Anterior atlanto-occipital membrane
2- Posterior atlanto-occipital membrane
Name the Motions included in relations to AO Joint
- Capital flexion/extension
- Capital lateral flexion
Label
What does AA Joint stand for?
Atlanto-Axial Joint
How many points of articulation at AA Joint and where?
three points of articulations:
2 (left and right) LATERAL ATLANTO-AXIAL JOINTS
located between the inferior facets of the lateral masses of C1 and the superior facets of C2
1 MEDIAN ATLANTO-AXIAL JOINT
located in between the dens of C2 and the anterior arch of the atlas
___________ process of C2 articulating with the anterior arch of C1 form a ________ _______ ________
Odontoid process
synovial pivot joint
Where is the majority of cervical rotation located? and how much degrees of rotation?
Odontoid process of C2 articulating with the anterior arch of C1 forming a synovial pivot form
about 45 degrees
Label
The primary support for the AA joint comes from the ___________ ligament of the ____________ ligament
Transverse
cruciform
AA Joint is supporrted by Transverse ligament of the cruciform ligament but also contains ___________ and ___________ bands
superior and inferior bands
Ligaments that support the AA Joint prevents what?
prevents subluxation/dislocation of the dens
what does subluxation mean?
partical dislocation