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 Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which of the following anatomical regions is lined by ciliated cells?

Urinary bladder

Trachea

Stomach

Esophagus

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Verified step by step guidance

Understand the function of ciliated cells: Ciliated cells are specialized epithelial cells equipped with hair-like structures called cilia. These cilia help move mucus, trapped particles, or fluids across the surface of the tissue. They are commonly found in areas involved in filtration, protection, or movement of substances.

Analyze the anatomical regions provided: The urinary bladder, trachea, stomach, and esophagus are listed. Consider the primary functions of each region and whether ciliated cells would be necessary for those functions.

Evaluate the urinary bladder: The urinary bladder is responsible for storing urine and does not require ciliated cells, as its lining is composed of transitional epithelium designed for stretching.

Evaluate the trachea: The trachea is part of the respiratory system and is lined with pseudostratified ciliated columnar epithelium. The cilia in the trachea play a crucial role in moving mucus and trapped particles upward toward the pharynx for expulsion, making it the correct answer.

Evaluate the stomach and esophagus: The stomach is lined with simple columnar epithelium specialized for secretion and absorption, not ciliated cells. The esophagus is lined with stratified squamous epithelium to protect against abrasion during swallowing, and it also lacks ciliated cells.