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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Problem 13e

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The semicircular ducts are connected to the utricle, and the cochlear duct is continuous with the saccule.

Verified step by step guidance

Step 1: Understand the anatomy of the inner ear. The inner ear consists of the vestibular system (responsible for balance) and the cochlea (responsible for hearing). The vestibular system includes the semicircular ducts, utricle, and saccule.

Step 2: Recall the connections between these structures. The semicircular ducts are part of the vestibular system and are connected to the utricle, which helps detect linear acceleration and head position.

Step 3: Examine the cochlear duct's relationship with the saccule. The cochlear duct is part of the cochlea and is continuous with the saccule, which is also part of the vestibular system and detects vertical acceleration.

Step 4: Evaluate the statements provided. The first part of the statement, 'The semicircular ducts are connected to the utricle,' is true based on anatomical connections. The second part, 'The cochlear duct is continuous with the saccule,' is also true based on the anatomical relationship.

Step 5: Conclude that both parts of the statement are true, and no corrections are needed. If either part were false, you would need to correct it based on the anatomical relationships described above.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Semicircular Ducts

The semicircular ducts are part of the inner ear and are responsible for detecting rotational movements of the head. They are oriented in three planes and are filled with a fluid called endolymph. Each duct connects to the utricle, which helps in maintaining balance and spatial orientation.

Utricle and Saccule

The utricle and saccule are otolithic organs located in the vestibule of the inner ear. They play a crucial role in detecting linear acceleration and the position of the head relative to gravity. The utricle is connected to the semicircular ducts, while the saccule is involved in hearing and is not directly continuous with the cochlear duct.

Cochlear Duct

The cochlear duct, also known as the scala media, is a fluid-filled cavity within the cochlea of the inner ear. It is responsible for converting sound vibrations into neural signals through the organ of Corti. The cochlear duct is not continuous with the saccule; instead, it is part of a separate system for hearing, while the saccule is involved in balance.