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

Introduction to Membrane Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Membrane Transport

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Multiple Choice

Interstitial fluid (IF) is:

the fluid secreted by glands

the fluid within cells

the fluid inside blood vessels

the fluid found between cells in tissues

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Verified step by step guidance

Understand the term 'interstitial fluid (IF)': Interstitial fluid is the fluid that exists in the spaces between cells within tissues. It is part of the extracellular fluid (ECF) and plays a crucial role in nutrient and waste exchange between cells and the bloodstream.

Clarify the options provided: Analyze each option to determine its relevance to the definition of interstitial fluid. For example, 'fluid secreted by glands' refers to glandular secretions like saliva or hormones, not interstitial fluid.

Eliminate incorrect options: The 'fluid within cells' refers to intracellular fluid (ICF), which is distinct from interstitial fluid. Similarly, 'fluid inside blood vessels' refers to plasma, another component of extracellular fluid but not interstitial fluid.

Focus on the correct option: The correct answer is 'the fluid found between cells in tissues,' as this matches the definition of interstitial fluid.

Summarize the concept: Interstitial fluid is a vital component of the extracellular fluid that surrounds cells in tissues, facilitating the exchange of nutrients, gases, and waste products between cells and the circulatory system.