Class NEET 2026 ALL Q #2020
KNOWLEDGE BASED
APPLY
4 Marks 2026 NTA-RE-NEET-2026 MCQ SINGLE
The number of vertebrae in a human is
(A) 206
(B) 7
(C) 12
(D) 26
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Correct Answer: D

AI Tutor Explanation

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Detailed Solution

Step 1: Analyze the human vertebral column structure

The human vertebral column is composed of a series of bones called vertebrae. In an adult human, these are organized into five regions: Cervical (7), Thoracic (12), Lumbar (5), Sacral (1 fused), and Coccygeal (1 fused).

Step 2: Calculate the total count

Summing the vertebrae: $$7 + 12 + 5 + 1 + 1 = 26$$ Note that while there are 33 vertebrae in an infant, the sacrum and coccyx fuse in adults to form 26 distinct bony elements.

Step 3: Evaluate the options

Option (A) 206 refers to the total number of bones in the adult human skeleton. Options (B) and (C) refer to specific regional counts (Cervical and Thoracic respectively). Option (D) 26 represents the correct total number of vertebrae in an adult.

Final Answer: 26

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Pedagogical Audit
Bloom's Analysis: This is an APPLY question because the student must recall anatomical facts and apply them to identify the correct count of skeletal components in the human body.
Knowledge Dimension: FACTUAL
Justification: The question tests basic biological terminology and anatomical data points explicitly mentioned in the NCERT Biology curriculum.
Syllabus Audit: In the context of NEET, this is classified as KNOWLEDGE. This question assesses the foundational understanding of the Locomotion and Movement chapter, which is a high-yield topic for medical entrance examinations.

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