2:1 Vertebral Column Flashcards
Vertebral Column provides….
protection for the spinal cord.
The vertebral column consists of…
vertebra
Plural for vertebra is…
vertebrae
Total number of vertebrae:
33
What are the 5 divisions of the vertebral column and (# vertebrae)?
- Cervical (7)
- Thoracic (12 - parallels the 12 ribs of the thorax)
- Lumbar (5)
- Sacral (5)
- Coccygeal (4)
Vertebrae are numbered…
sequentially by sections.
Name the sequential sections.
Cervical:
C1-C7
Thoracic:
T1-T12
Lumbar:
L1-L5
Sacral:
S1-S5
Coccyx:
Fused - 3 or 4 fused vertebrae
C1 =
C2 =
C1 = Atlas C2 = Axis
Thoracic landmarks:
- Superior and Inferior Costal Facets are points of attachment for ribs.
- Transverse Costal Facets.
Intervertebral Discs:
Fibrocartilaginous discs found between vertebrae except for the first two (C1 and C2 - connected by dons and the odontoid ligament).
Intervertebral Discs provide…
a support and cushion for vertebrae.
How many intervertebral discs?
Approximately 24 discs.
Anatomy of a vertebrae- Each vertebrae contains each of these features (6):
- Spinous process
- Transverse process
- Corpus
- Vertebral foramen
- Intervertebral foramina
- Superior and Inferior Articular Facets
Spinous process:
prominent structure found on the posterior side of the vertebrae (think: you can feel this portion with your hands). Can be found just in the middle or on both sides depending on what vertebra.
Transverse process (both sides):
prominent structure found on both sides
Corpus (body):
anterior portion/body
Vertebral foramen:
prominent hole for the spinal cord to pass through
Intervertebral foramina:
small holes for the entrance and exiting of spinal nerves (nerves that enter and exit the spinal cord)
Superior and inferior articular facets:
allows for articulation with other vertebrae (other vertebral segments). Indentations found on the vertebrae that allow for articulation with other vertebrae allowing vertebrae to stack on top on one another.
Cervical Vertebrae compose the…
neck bones.
Cervical Vertebrae have a total of
7 vertebrae (C1-C7)