Table of contents

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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 Skull

Anatomy & Physiology

7. The Skeletal System

The Skull

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Multiple Choice

Which of the following sinuses are at high risk of infection spreading from the middle ear?

the frontal sinuses

the ethmoid sinuses

the mastoid sinuses

the sphenoid sinuses

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Verified step by step guidance

Understand the anatomy of the ear and surrounding structures. The middle ear is located within the temporal bone, which is near the mastoid process.

Recognize that the mastoid sinuses, also known as mastoid air cells, are located in the mastoid process of the temporal bone, adjacent to the middle ear.

Consider the proximity of the mastoid sinuses to the middle ear. This close anatomical relationship makes them susceptible to infection spreading from the middle ear.

Learn about the pathophysiology of ear infections. Infections in the middle ear can spread to nearby structures, including the mastoid sinuses, due to the interconnected air cell system.

Review clinical implications. Mastoiditis is a condition where infection spreads from the middle ear to the mastoid sinuses, highlighting the risk associated with their proximity.