Vertebral Column Flashcards
List of types of vertebra from most superior to most inferior
Cervical, thoracic, lumbar, sacral and coccygeal
How many cervical vertebra are there?
7
How many thoracic vertebra are there?
12
How many lumbar vertebra are there?
5
How many sacral vertebra are there?
5
How many coccygeal vertebra are there?
4 +- 1
Which 2 types of vertebra are a part of normal lordosis? (forwards curves)
Cervical and lumbar
Which 2 types of vertebra are a part of normal kyphosis? (backwards curves)
Thoracic and sacral
What is abnormal lordosis?
Hollow back - pregnancy/obesity weakens trunk muscles, over curvature of lumbar spine
What is abnormal kyphosis?
Hunchback - increased thoracic curve
Is the vertebral column axial or appendicular skeleton
Axial
Is the spinal cord in the CNS or the PNS
CNS
Why is the number of vertebra APPROXIMATELY 33?
The sacral and coccygeal vertebra are fused together
What proportion of bones is made up of organic components?
1/3
What proportion of bones is made up of inorganic components?
2/3