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

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Anatomical Terms for the Head and Neck

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Multiple Choice

Which bone forms the majority of the floor of the cranial cavity when viewed from above (superior view)?

Frontal bone

Sphenoid bone

Parietal bone

Nasal bone

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the cranial cavity. The cranial cavity houses the brain and is formed by several bones that make up the skull. These bones include the frontal, parietal, sphenoid, and others.

Step 2: Focus on the superior view of the cranial cavity. This perspective allows you to see the arrangement of bones forming the floor of the cavity from above.

Step 3: Recall the specific roles of the listed bones: The frontal bone forms the forehead and part of the anterior cranial cavity. The parietal bones form the sides and roof of the cranial cavity. The nasal bone contributes to the structure of the nose and does not form part of the cranial cavity floor.

Step 4: Understand the sphenoid bone's unique position and structure. It is a butterfly-shaped bone located at the base of the skull and forms a significant portion of the cranial cavity floor. Its central location and articulation with other bones make it a key structural component.

Step 5: Conclude that the sphenoid bone forms the majority of the floor of the cranial cavity when viewed from above, based on its anatomical position and function.