CERVICAL VERTEBRAE
All of the following characteristics differentiate a typical cervical vertebrae from a thoracic vertebrae except?
| A |
Has a triangular vertebral canal |
|
| B |
Has foramen transversarium |
|
| C |
Superior articular facet is directed backwards & upwards. |
|
| D |
Has a large vertebral body |
All of the following characteristics differentiate a typical cervical vertebrae from a thoracic vertebrae except?
| A |
Has a triangular vertebral canal |
|
| B |
Has foramen transversarium |
|
| C |
Superior articular facet is directed backwards & upwards. |
|
| D |
Has a large vertebral body |
Has a large vertebral body.
|
Characteristics |
Cervical |
Thoracic |
Lumbar |
|
• Foramen transverversarium in transverse process |
present (transmits vertebral artery) |
absent |
absent |
|
• Vertebral foramen |
triangular |
circular |
triangular |
|
• Vertebral body |
small & broad from side to side |
medium sized & heart shaped |
large & kidney shaped |
|
• Sup. articular facets |
face backwards & upwards |
backwards & laterally |
face medially |
|
• Inf. articular facets |
face downward & forward |
face forward and medially |
face laterally |
|
• Facets for articulation with ribs on body & transverse processes |
absent |
present |
absent |
|
• Spinous process |
small & bifid |
long & inclined downwards |
short, flat, quadrangular & project backward |
| A | C2 | |
| B |
C3 |
|
| C |
C4 |
|
| D |
C5 |
TRUE/FALSE about vertebral artery is /are:
| A | 1,2,3 true & 4,5 false | |
| B |
1,2,4 false & 3,5 true |
|
| C |
1,3,5 true & 2,4 false |
|
| D |
All are true |
Vertebral artery is one of the principal arteries which supply the brain. It arises from the posterosuperior aspect of the first part of the subclavian artery near its commencement.
- The first part extends from the origin of the artery (from the subclavian artery) to the transverse process of the sixth cervical vertebra.
- 2nd part runs through the foramen transversarium of the upper six cervical vertebrae.
- 3rd part lies in the occipital triangle.
- 4th part extends from the posterior atlantooccipital membrane to the lower border of the pons.
“It passes medially above the posterior arch of the atlas and then ascends through foramen magnum into the skull”.
All of the following characteristics differentiate a typical cervical vertebrae from a thoracic vertebrae except
| A |
Mas a triangular vertebral canal |
|
| B |
Has foramen transversarium |
|
| C |
Superior articular facet is directed backwards & upwards. |
|
| D |
Has a large vertebral body |
The transverse process of cervical vertebrae is pierced by a foramen called the foramen transversarium.The laminae of cervical vertebrae are long(transversely)and narrow (vertically).The spinous processes are short and bifid in a typical cervical vertebra.
Cervical vertebrae can be differentiated from thoracic vertebrae on the basis of which of the following features?
| A |
Triangular body |
|
| B |
Presence of foramen transversarium |
|
| C |
Superior articular facet which is directed backwards and sidewards |
|
| D |
Presence of a large vertebral body |
Foramen transversarium is a characteristic feature of cervical vertebrae. Foramen transversarium of transverse process of cervical vertebrae transmits:
- Vertebral artery,
- Vertebral veins,
- Branch from the inferior cervical sympathetic ganglion.
Thoracic vertebrae is chracterised by the presence of costal facets in the body.
Lumbar vertebrae has:
- Kidney shaped body
- Long thin transverse process
- Spine which is short, quadrilateral and horizontal
- Presence of mamillary body and accessary mamillary process
- Absence of foramen transvorsorium and costal facets.
| A |
Has a triangular vertebral canal |
|
| B |
Has foramen transversarium |
|
| C |
Superior articular facet is directed backwards and upwards |
|
| D |
Has a large vertebral body |
Cervical vertebrae has a small body. Its transverse diameter is greater than the anteroposterior length. Outline of thoracic vertebral body when viewed from above is heart shaped.
- Each transverse process has foramen transversarium.
- The spines are short and bifid.
- Vertebral foramen is large and triangular.
- Presence of costal facets on each side of the body for articulation with ribs.
- Their spinous process are long, slender, and directed downwards.
- Vertebral foramina is circular.
All of the following characteristics differentiate a typical cervical vertebrae from a thoracic vertebrae except:
| A |
Has a triangular vertebral canal |
|
| B |
Has foramen transversarium |
|
| C |
Superior articular facet is directed backwards & upwards. |
|
| D |
Has a large vertebral body |
D i.e., Has a large vertebral body
Characteristics of a typical cervical vertebrae include small & broad vertebral body, large & triangular vertebral canal, backwards & upwards facing superior articular facets downward & forward facing inferior articular facetsQ along with presence of characteristic foramen transversarium in transverse processes for the passage of vertebral artery & vein. Although the vertebral artery passes through the transverse process Cl to C6 and not through C7.
