Spine Flashcards
How many vertebrae are in the Cervical, Thoracic, Lumbar, Sacral and Coccyx Spine?
C = 7 T = 12 L = 5 S = 5 fused together C = 4
How many Cervical Nerve Roots are there?
8 nerve roots
What is the function of the Annulus of the Intervertebral Disc?
STABILITY, movement between vertebral bodies, LIMITED shock absorption
What is the function of the Nucleus Pulposus of the Intervertebral Disc?
Transmits forces, equalizes stress and PROMOTES movement and SHOCK ABSORPTION
Do the Intervertebral Discs have good blood supply?
No, they are largely avascular and a neural so are limited in healing
Define Posture
A position or attitude of the body, the relative arrangement of body parts for a specific activity or a characteristic manner of bearing ones body.
Where is the COG in relation to the Atlanto-Occipital Joint?
What provides Stability?
- Anterior as posterior muscles contract
- Posterior cervical muscles
Where is the COG in relation to the Trunk?
What provides Stability?
- Goes through the bodies of the bodies of the cervical and lumbar vertebras.
- Erector spinae muscles
Where is the COG in relation to the Hip?
What provides Stability?
- Usually goes through the Hip but varies with body movement
- If Posterior = Iliopsoas tension
- If Relaxed = Iliofemoral ligament (Y)
- If Anterior = Hip extensors
Where is the COG in relation to the Knee?
What provides Stability?
- Anterior to joint keeping the knee in extension
- ACL, posterior capsule, tension on hamstrings, soleus
Where is the COG in relation to the Ankle?
What provides Stability?
- Anterior to the joint which causes the tibia to rotate forward on ankle
- Plantarflexors (primarily soleus)
What is the function of the Anterior Pillars of the Spine?
They are the vertebral bodies and discs that provide weight bearing and shock absorption
What is the function of the Posterior Pillars of the Spine?
They are the articular processes and facet joints, vertebral arches, transverse process and central spinous processes that provide gliding for movement and stability
What type of muscles are Global and Core?
Which are Superficial and Deep?
Global = Fast Twitch Type 2, Superficial
Core = Slow Twitch Type 1, Deep
Describe Global Muscles
- Respond to external loads
- Provide overall stability but cannot control mulitsegmental instabilities
Describe Core Muscles
- Segmental attachments
- Dynamic support
- Help maintain each segment in stable position to reduce stress
Anterior Curves are also known as?
Posterior Curves are also known as?
Anterior = Lordosis (Cervical & Lumbar) Posterior = Kyphosis (Thoracic & Sacral)
Describe Lordotic Posture
Increased lumbosarcral angle to about 40*
Describe Relaxed “Sway Back” Posture
Pelvis shifts anteriorly as Thoracic shifts posteriorly
Describe Flat Low Back Posture
Decreased lumbosacral angle and lumbar lordosis with hip ext and posterior pelvic tilt
Your patient demonstrates a flat low back posture. Which muscle would NOT need to be stretched?
Hip Flexors
Which side do you name Scoliosis for?
The side of CONVEXITY
If you patient has right thoracic scoliosis what is the appropriate stretch for them?
Heel sit, patient laterally bends to the right
Describe Forward Head Posture
- Increased flex of lower cervical and upper thoracic regions
- Increased ext of occiput on atlas and upper cervical vertebrae