Q171 / 180 · NEET 2026 (Cancelled) · Zoology

Which of the following statements are correct with reference to human endoskeleton ?
A. Human skull is monocondylic.
B. The joint between any two adjoining vertebrae is a cartilaginous joint.
C. In human beings, the number of cervical vertebrae is seven.
D. All ribs except the last $2$ pairs are bicephalic.
E. The occipital bone of skull is articulated with atlas vertebra.
Choose the correct answer from the options given below :

  • A
    B and E only
  • Correct answer
    B
    B, C and E only
  • C
    C, D and E only
  • D
    A, B and D only

Solution

Statement A is incorrect because the human skull is dicondylic, possessing two occipital condyles.

Statement B is correct because the joints between adjacent vertebrae are cartilaginous joints, which permit limited movement.

Statement C is correct because humans, like almost all mammals, have seven cervical vertebrae.

Statement D is incorrect because all $12$ pairs of ribs are bicephalic, meaning they have two articulation surfaces on their dorsal end.

Statement E is correct because the occipital bone of the skull articulates with the first cervical vertebra, known as the atlas.

Therefore, statements B, C, and E are correct.

Answer: B, C and E only

Hence, the correct answer is option: 'B'.

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