Anatomy - Back Flashcards
*What is the basic architecture of the spinal column?
Basics:
- Pyramid
- Segmented
- to allow for movement
- Over 100 joints!
Spinal Curvatures
- Cervical
- Lordosis - posterior concavity
- Thoracic
- Kyphosis - posterior convexity
- Lumbar
- Lordosis - posterior concavity
- Sacral
- Kyphosis - posterior convexity
-
Scoliosis (abnormal)
- Lateral curvature
*What are the regions of the vertebrae?
-
Cervical (7)
- Spinouos process
- Transverse foramen
-
Thoracic (12)
- Declination of spinous process
-
Lumbar (5)
- Size
- Spinous process
-
Sacral (5 fused)
- Base of pyramid
- Coccyx (3-5 fused)
*What is the structure and function of the intervertebral disc?
- Annulus Fibrosus
- exterior rim
- Nucleus Pulposus
- interior
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*What are the basic kinematics of the body as applied to the spine?
- Movement, not forces
- Vectors
- 6° of freedom?
- Joint Anatomy
- facilitates
- restricts
- Extension/Flexion
- Lateral Flexon
- Rotation
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*What are the layers of muscle in the back & what are their primary functions?
-
Superficial
- Upper limb movement
- Trapezius
- Deltoid
- Infraspinatus/Supraspinatus
- Teres Major/Minor
- Latissimus dorsi
- Rhomboid major/minor
- Levator scapulae
- Splenius cervicis/capititis
- Semispinalis capitis muscle
- Upper limb movement
-
Intermediate
- Accessory respiratory
- Serratus anterior/posterior superior/inferior
- External/Interna loblique
- Accessory respiratory
-
Deep
- Spine support
- Erector spinae
- Iliocostalis
- Longissimus
- Spinalis
- Transversospinales
- Levatores costarum
- hold spine to rib
- Erector spinae
- Spine support
- Gait
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What are the contents and spaces of the vertebral canal?
- CNS (spinal cord)
-
Meninges
- Dura mater
- archnoid mater
- SAS
- pia mater
- recurrent (meningeal) branches of spinal nerve
-
Blood
- Arteries
- Segmental
- Vertebral
- Intercostal
- Lumbar
- Lateral Sacral
- Veins (Posterior/Anterior)
- Vertebral plexus
- No valves
- Arteries
-
Fat
- epidural space
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What is the relationship between the spinal cord and vertebral
column?
- Spinal cord
- C1-Co
- C1-L2
- CPU
- Gray Matter
- White Matter
- tracks
- Nerves vs. Vertebrae
- C7, C8
- Conus medullaris
- Cauda equina
- LP
How does the CNS traffick information in & out?
- CNS/PNS
- Input/Output
- Afferenet/Efferent
- Sensory/Motor
- PNS
- Somatic
- Visceral (autonomic nervious system)
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What is the basic architecture of the spinal nerve?
- The arboreal analogy:
- roots, trunk, branches (rami)
- The Law of Bell‐Magendie
- dorsal root : sensory
- ventral root: motor
- The mixed “peripheral” nerve and its branches
- afferent/efferent
- somatic/visceral
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What are the modalities carried by the spinal nerve?
Distribution of Spinal Nerves
- Dermatome (skin)
- different from the plexus branch distribution
- Myotome (muscles)
- Sclerotome (bones)
What is the basic pathology of the spine as it relates to the spinal nerve?
- Degenerative Joint Disease
- Spondylolysis
- Spondylolisthesis
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What is the Suboccipital Triangle?
- 4 muscles
- 1 nerve
- Vertebral Artery
- Tension Headache
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How is blood suppied to the spinal cord?
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What is the arrangement of spinal arteries?
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What is the arrangement of spinal veins?
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What are the Superficial Back Muscles?
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What are the Deep Back Muscles?
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What type of ligaments are shown?
Anterior longitudinal
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What type of ligment is shown?
Posterior longitudinal
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How is the spinal cord innervated?
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What are the meninges?
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What are the components of the spinal nerve?
- The arboreal analogy:
- roots, trunk, branches (rami)
- The Law of Bell-Magendie
- dorsal root : sensory
- ventral root: motor
- The mixed “peripheral” nerve and its branches
- afferent/efferent
- somatic/visceral
- Contrast the cranial nerve
- (single and/or multiple modalities)
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Intervertebral Foramen
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What is a Herniated Nucleus Pulposus?
- Usually posterolateral
- Ligament position
- Affects one or more spinal nerves
- Dx:
- straight leg raise
- Tx:
- Rest/exercise, etc.
- Surgery?
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What are Zygapophyseal Joints?
Basics:
- Gliding Joints
- planar joints
- Facet Joints
- in the vertical plane/sagical plane
- flex/extension
- Allow motion
- Restrict motion
- Offset
- coupling