Vertebral Column and Back Flashcards
Boundaries of the spine
First thoracic vertebra to the tip of the coccyx
Parts of the spine
1)
2)
1) Vertebral column
2) Muscle compartments (2xmuscle compartments
Parts of the vertebral column
1)
2)
1) Intervertebral joints and discs
2) Vertebral canal (and intervertebral foramen)
Muscle compartments of the spine
1)
2)
1) Superficial
2) Deep
Where does the spinal cord sit?
In the vertebral canal
What attaches to every spinal cord segment?
A posterior root (sensory) and an anterior root (motor)
Where does a posterior root of the spinal cord enter
Dorsal root ganglion
What are the dorsal root ganglia?
Cell bodies of sensory neurons
Number of spinal cord segments
C - 8
T - 12
L -5
S - 5
Where does the spinal cord terminate?
Between L1 and L2
Number of cervical nerves vs number of cervical vertebrae
8 cervical nerves, only 7 cervical vertebrae
Lordotic curves
Curves that develop in the primary foetal C-shaped spinal curvature
Order of lordotic curves
1) Cervical bend (lifting head)
2) Lumbar bend (walking)
Scoliosis
Abnormal lateral spinal curvature
Kyphosis
Abnormal thoracic curvature (anterior/posterior curvature)
Abnormal lordosis
Abnormal lumbar curvature
Parts of a typical vertebra 1) 2) 3) 4) 5) 6)
1) Body
2) Pedicles
3) Transverse processes
4) Articular processes
5) Laminae
6) Spinous processes
Parts of the vertebral arch 1) 2) 3) 4) 5)
1) Pedicles
2) Transverse processes
3) Articular processe
4) Laminae
5) Spinous processes
How do lumbar and thoracic vertebrae differ?
1)
2)
1) Lumbar vertebrae larger than thoracic
2) Thoracic have attachments for ribs (articular facets, demifacets)
