Vertebral Column Flashcards
Which vertebrae has a bifid spinous process, a transverse foramen, and bifid transverse processes?
Cervical Vertebrae
- C7 has long spinous process
Which cervical vertebrae has no spinous process?
C1 (Atlas) –> no body and no spinous process
C2 has the dens to fit into C1
Articular facets of thoracic vertebrae are directed:
Anteriorly/Posteriorly
- Thoracic V. have coastal facets to articulate with ribs
Which vertebrae have articular facets that face medially/laterally?
Lumbar Vertebrae
What connects the lamina together?
Ligamentum Flavum
Where does the anterior longitudinal ligament run? Posterior?
- In front of the vertebral bodies–> limits EXTENSION
- behind the vertebral bodies –> limits FLEXION
Define Supraspinous and Interspinous ligaments
a) supraspinous - runs all the way down the spine
b) interspinous ligament - connects the spinous processes together (inter=between)
Where would one find the conus medullaris in an adult?
At the level of L1-L2
What is the pia mater and what are its extensions? What does it continue inferiorly as?
- Pia mater is the innermost membrane surrounding spinal chord
- Extensions = DENTATE LIGAMENTS (teeth like) –> connects pia to dura mater and stabilizes the chord
- Continues as the FILUM TERMINALI
What houses the subarachnoid space that contains the CSF?
Arachnoid
The dorsal (sensory) and ventral (motor) roots continue inferiorly down the vertebral canal as the _________.
Cauda Equina - horse’s tail
Roots form ____ which divide into _____
form 1. nerves
which divide into 2. RAMI
What can be used to determine at what level the cord may have been traumatized?
Dermatome Map
What are some of the divisions of the dermatome map? Arms/Neck, Chest/Abdomen, Legs?
arm/neck = CERVICAL
Chest/abdomen = THORACIC (hence - thorax)
Legs = LUMBAR (L for L)
Genitals and ankles = SACRAL
Rectus Capitis Posterior MINOR
O: posterior tubercle of ATLAS
I: Below Inferior Nuchal Line
A: EXTENSION of head
N: Suboccipital Nerve
A: Occipital Artery
