NEET 2026 (Phase 1) · BiologyPrevious Year Question
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
- B.B, C and E only✓
- C.C, D and E only
- D.A, B and D only
Correct Answer
(B) B, C and E only
Solution & Explanation
Answer: 2 (B, C and E only). A is INCORRECT: the human skull is dicondylic (not monocondylic) — it articulates with the vertebral column with the help of two occipital condyles. B is correct: the joint between adjacent vertebrae is a cartilaginous joint, permitting limited movement. C is correct: there are seven cervical vertebrae in human beings (and in almost all mammals). D is INCORRECT: ALL ribs (not all except the last 2 pairs) are bicephalic — each rib has two articulation surfaces on its dorsal end. E is correct: the first vertebra (atlas) articulates with the occipital condyles of the occipital bone, forming the atlanto-occipital joint. NCERT Ch 17, p.225, line 3: "vertebral column with the help of two occipital"
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