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

15. The Special Senses

Introduction to Special Senses

Anatomy & Physiology

15. The Special Senses

Introduction to Special Senses

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Multiple Choice

How does the pinna contribute to the process of hearing by transferring sounds to the brain?

By filtering out low-frequency sounds before they enter the ear canal.

By converting sound waves into electrical signals.

By vibrating in response to sound waves and transmitting these vibrations to the cochlea.

By amplifying sound waves and directing them into the ear canal.

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Verified step by step guidance

Understand the anatomy of the ear: The pinna, also known as the auricle, is the visible part of the ear that is outside the head. It plays a crucial role in the hearing process.

Recognize the function of the pinna: The pinna helps to collect sound waves from the environment and funnel them into the ear canal. This is the first step in the auditory process.

Consider the role of amplification: The shape of the pinna is designed to amplify certain frequencies of sound waves, making them easier for the ear to process.

Understand sound direction: The pinna also helps in determining the direction of sound, which is important for spatial awareness and locating the source of sounds.

Connect to the auditory pathway: Once the sound waves are directed into the ear canal, they travel to the eardrum and further into the inner ear, where they are eventually converted into electrical signals that the brain interprets as sound.