Chapter 10: Vertebral Column (General) Flashcards
_________ - is the main part of the axial skeleton.
vertebral column
Bones that are joined by intervertebral joints to form the vertebral column is called:
vertebrae
Located between each vertebrae that provides stability along with ligaments and muscles.
intervertebral discs
The functions of the vertebral column are the following. Except:
- Protects the spinal cord and spinal nerves
- First line of defense of the body
- Supports the weight of the body
- Plays an important role in posture and locomotion
Except: 2
What consists the vertebral column?
- cervical vertebra
- thoracic vertebra
- lumbar vertebra
- sacral vertebra
- coccyx vertebra
How many is the Cervical vertebrae?
7 cervical
The following are numbers of each vertebrae that consists the vertebral column. Except:
- 7 cervical
- 12 thoracic
- 6 lumbar
- 5 sacral
- 3 to 5 coccyx
Except: 6
Sometimes there can be 6 lumbar vertebra which is called lumbarization (first sacral body does not fuse (occurs in 5% of people)
5th lumbar vertebra fuses with the sacrum, which only produce 4 lumbar vertebrae instead of 5 lumbar. This is called:
sacralization
There are 23 intervertebral discs in a normal adult spine which are comprised of a core called _________ and a periphery called _________ .
nucleus pulposis
annulus fibrosis
________ - are the shock absorbers of the spine and again vary in thickness and size (largest in the lumbar spine).
discs
The thoracic and sacral curves are concave ________ and the cervical and lumbar curves are concave _________ .
anteriorly
posteriorly
What are the main pathologies that can cause abnormal curvatures in the spine?
- osteoporosis
- hyperkyphosis
- hyperlordosis
- Scoliosis
_________ - are composed of a vertebral body anteriorly and a vertebral arch posteriorly. There are processes that arise from the arch (2 transverse processes and 1 spinous process).
Typical Vertebrae
What is the functions of the body of a vertebra and vertebral arch?
to bear weight and to protect neural tissues
_________ - is connected to the body by the pedicles and the two pedicles are joined by the lamina.
vertebral arch