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 structure delivers sound waves to the tympanic membrane?

Cochlea

Eustachian tube

External auditory canal

Semicircular canals

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Verified step by step guidance

Understand the anatomy of the ear: The ear is divided into three main parts—external ear, middle ear, and inner ear. The external ear includes structures responsible for capturing and directing sound waves toward the tympanic membrane (eardrum).

Identify the function of the external auditory canal: The external auditory canal is a tube-like structure that connects the outer ear (pinna) to the tympanic membrane. Its primary role is to transmit sound waves from the environment to the eardrum.

Clarify the role of the tympanic membrane: The tympanic membrane (eardrum) vibrates in response to sound waves, converting them into mechanical energy that is transmitted to the middle ear structures.

Differentiate the other structures mentioned: The cochlea is part of the inner ear and is responsible for converting mechanical energy into neural signals. The Eustachian tube helps equalize pressure in the middle ear but does not deliver sound waves. The semicircular canals are involved in balance and equilibrium, not hearing.

Conclude that the external auditory canal is the correct structure that delivers sound waves to the tympanic membrane, based on its anatomical location and function.