Cervical Vertebrae

CERVICAL VERTEBRAE

Q. 1

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

Q. 1

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

Ans. D

Explanation:

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



Q. 2

In an adult, the hyoid bone is seen at which of the following level of the cervical vertebrae?

 A

C2

 B

C3

 C

C4

 D

C5

Q. 2

In an adult, the hyoid bone is seen at which of the following level of the cervical vertebrae?

 A

C2

 B

C3

 C

C4

 D

C5

Ans. B

Explanation:

The hyoid bone is found at the level of third cervical vertebrae in adults. It is situated above the thyroid cartilage in the anterior wall of the hypopharynx in relation to the base of the tongue. It is made up of  a body, bilateral greater cornua and bilateral lesser cornua.
 
It is a sesamoid bone and is suspended in between the supra hyoid and infra hyoid musculature and is therefore responsible for the concavity between the chin and the anterior neck. The body is convex from side to side. At either end of the body on its upper surface is a small tubercle called lesser cornu. It is the point of attachment of medial end of middle constrictor  muscle and stylohyoid ligament.
 

Q. 3

TRUE/FALSE about vertebral artery is /are:

1. Enter skull through condylar canal
2. Branch of internal carotid artery
3. Branch of subclavian artery
4. Accompany sympathetic ganglion
5. Passes through foramen transversarium of cervical vertebrae
 
 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

Q. 3

TRUE/FALSE about vertebral artery is /are:

1. Enter skull through condylar canal
2. Branch of internal carotid artery
3. Branch of subclavian artery
4. Accompany sympathetic ganglion
5. Passes through foramen transversarium of cervical vertebrae
 
 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

Ans. B

Explanation:

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”.


Q. 4

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

Q. 4

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

Ans. D

Explanation:

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.

The vertebral bodies progressively increase in size from above downwards.They are therefore smallest in the cervical vertebrae and largest in the lumbar vertebrae.
 

 


Q. 5

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

Q. 5

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

Ans. B

Explanation:

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.

Q. 6

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 and upwards

 D

Has a large vertebral body

Q. 6

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 and upwards

 D

Has a large vertebral body

Ans. D

Explanation:

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.

Features of a typical cervical vertebrae:
  • Each transverse process has foramen transversarium.
  • The spines are short and bifid.
  • Vertebral foramen is large and triangular.
Features of thoracic vertebrae:
  • 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.
 

 


Q. 7

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

Q. 7

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

Ans. D

Explanation:

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.



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