Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart2h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

7. The Skeletal System

The Spine

Anatomy & Physiology

7. The Skeletal System

The Spine

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Multiple Choice

In a(n) __________, the vertebral column is formed from 33 separate bones.

child over the age of six

fetus

adult

teenager

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Verified step by step guidance

Understand the development of the vertebral column: The vertebral column is a crucial part of the skeletal system, providing support and protection for the spinal cord. It undergoes significant changes from fetal development through adulthood.

Recognize the stages of vertebral column development: In a fetus, the vertebral column starts as 33 separate bones, known as vertebrae. These bones are initially formed as cartilage and gradually ossify into bone.

Consider the changes post-birth: After birth, the vertebrae begin to fuse in certain regions, such as the sacrum and coccyx, reducing the total number of separate bones in the vertebral column.

Identify the adult vertebral column structure: In adults, the vertebral column typically consists of 24 separate vertebrae, as the sacral and coccygeal vertebrae have fused into single bones.

Apply this knowledge to the problem: Given the options, the correct answer is 'fetus,' as this is the stage where the vertebral column is formed from 33 separate bones before fusion occurs.