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

4. Tissues & Histology

Introduction to Tissues & Histology

Anatomy & Physiology

4. Tissues & Histology

Introduction to Tissues & Histology

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Multiple Choice

Which of the following best identifies simple squamous epithelium, and what is its primary function?

A single layer of tall, column-like cells; specialized for absorption and secretion

A single layer of flat cells; allows for rapid diffusion and filtration

Multiple layers of flat cells; forms the outer layer of the skin

Multiple layers of cube-shaped cells; provides protection against abrasion

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Verified step by step guidance

Step 1: Understand the structure of simple squamous epithelium. Simple squamous epithelium consists of a single layer of flat, thin cells. These cells are closely packed and have a flattened nucleus, which is characteristic of this tissue type.

Step 2: Identify the primary function of simple squamous epithelium. Due to its thin and flat structure, this epithelium is specialized for processes that require rapid diffusion or filtration, such as gas exchange in the lungs or filtration in the kidneys.

Step 3: Compare the descriptions provided in the options. Look for the option that matches the structural and functional characteristics of simple squamous epithelium: a single layer of flat cells and its role in rapid diffusion and filtration.

Step 4: Eliminate incorrect options. For example, 'a single layer of tall, column-like cells' describes simple columnar epithelium, which is specialized for absorption and secretion. Similarly, 'multiple layers of flat cells' describes stratified squamous epithelium, which provides protection, and 'multiple layers of cube-shaped cells' describes stratified cuboidal epithelium, which offers protection against abrasion.

Step 5: Select the correct answer based on the structural and functional match. The correct description is 'A single layer of flat cells; allows for rapid diffusion and filtration,' which accurately identifies simple squamous epithelium and its primary function.