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

Introduction to Directional Terms

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Directional Terms

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Multiple Choice

With one exception, the skull bones are joined by sutures. Which bone is the exception?

Frontal bone

Occipital bone

Parietal bone

Mandible

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Verified step by step guidance

Step 1: Understand the structure of the skull. The human skull is composed of several bones that are primarily joined together by immovable joints called sutures. These sutures are fibrous connections that hold the bones tightly together.

Step 2: Identify the exception to the suture rule. The mandible (lower jawbone) is the only bone in the skull that is not connected by sutures. Instead, it is connected to the temporal bone via the temporomandibular joint (TMJ), which is a movable synovial joint.

Step 3: Compare the mandible to other skull bones. The frontal, occipital, and parietal bones are all connected by sutures, making them immovable. The mandible's movable joint allows for functions such as chewing and speaking.

Step 4: Recognize the functional significance of the mandible's exception. The mandible's mobility is essential for mastication (chewing) and articulation during speech, which requires movement that sutures cannot provide.

Step 5: Conclude that the mandible is the correct answer because it is the only skull bone connected by a movable joint rather than sutures.