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

Which of the following structures is embedded within the otolithic membrane of the vestibular system?

Cochlear duct

Semicircular canal ampullae

Hair cell nuclei

Otoliths (calcium carbonate crystals)

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Verified step by step guidance

Understand the vestibular system: The vestibular system is responsible for maintaining balance and spatial orientation. It includes structures such as the semicircular canals, the utricle, and the saccule.

Learn about the otolithic membrane: The otolithic membrane is a gelatinous structure located in the utricle and saccule of the vestibular system. It plays a key role in detecting linear acceleration and head position relative to gravity.

Identify the components of the otolithic membrane: Embedded within the otolithic membrane are otoliths, which are small calcium carbonate crystals. These crystals add weight to the membrane, enhancing its sensitivity to movement.

Clarify the role of otoliths: Otoliths interact with hair cells in the utricle and saccule. When the head moves, the otolithic membrane shifts, bending the hair cell stereocilia and triggering nerve signals to the brain.

Eliminate incorrect options: The cochlear duct is part of the auditory system, not the vestibular system. The semicircular canal ampullae detect rotational movement, not linear acceleration. Hair cell nuclei are part of the hair cells but are not embedded in the otolithic membrane. The correct answer is otoliths.