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 Heart3h 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 Skull

Anatomy & Physiology

7. The Skeletal System

The Skull

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Multiple Choice

What is the primary function of the fontanels in the skull of an infant?

To protect the brain from external trauma

To allow for the growth of the brain during infancy

To provide attachment points for facial muscles

To serve as a reservoir for cerebrospinal fluid

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Verified step by step guidance

Understand the anatomy of the infant skull: Fontanels are soft spots on a baby's skull where the bones have not yet fused together. These areas are covered by a tough membrane that protects the underlying brain.

Recognize the developmental significance: The fontanels allow for the rapid growth of the brain during infancy. As the brain grows, the skull needs to expand, and the fontanels provide the necessary flexibility for this expansion.

Consider the physiological aspect: The presence of fontanels facilitates the passage of the infant's head through the birth canal during delivery, as the skull can slightly compress and reshape.

Differentiate from other functions: While fontanels do offer some protection, their primary function is not to protect the brain from external trauma, nor do they serve as attachment points for facial muscles or reservoirs for cerebrospinal fluid.

Conclude with the primary function: The main role of fontanels is to accommodate the growth of the brain during infancy, ensuring that the skull can expand as needed.