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

2. Cell Chemistry & Cell Components

Microscopes

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Microscopes

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Multiple Choice

When would a scientist use an oil immersion lens on a microscope?

To reduce the glare from the microscope light source

To enhance the contrast of stained tissue samples

To increase the field of view for larger specimens

To achieve higher magnification and resolution for viewing small specimens

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Verified step by step guidance

Understand the purpose of an oil immersion lens: It is used to achieve higher magnification and resolution, which is essential for viewing very small specimens that cannot be seen clearly with lower magnification lenses.

Recognize that oil immersion lenses are typically used with 100x objective lenses, which, when combined with the eyepiece, can provide a total magnification of 1000x or more.

Learn how oil immersion works: The oil has a similar refractive index to glass, which minimizes light refraction and allows more light to enter the lens, improving image clarity and resolution.

Identify when to use oil immersion: It is particularly useful when examining small details in specimens such as bacteria, blood cells, or fine tissue structures that require high magnification.

Note that oil immersion is not used to reduce glare, enhance contrast, or increase the field of view, but specifically to improve magnification and resolution for small specimens.