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

Cell Junctions

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Cell Junctions

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which type of cell junctions must be present between cells to form a barrier?

Tight junctions

Adherens junctions

Gap junctions

Desmosomes

Previous problemNext problem

Verified step by step guidance

Understand the function of cell junctions: Cell junctions are structures that connect cells to each other, allowing them to communicate and maintain tissue integrity.

Identify the types of cell junctions: The main types are tight junctions, adherens junctions, gap junctions, and desmosomes.

Learn about tight junctions: Tight junctions create a seal between adjacent cells, preventing the passage of molecules and ions through the space between cells. This is crucial for forming a barrier.

Consider the role of other junctions: Adherens junctions provide mechanical attachments between cells, gap junctions allow communication through ion and molecule exchange, and desmosomes provide strong adhesion between cells.

Conclude which junction forms a barrier: Tight junctions are essential for forming a barrier as they prevent leakage and maintain the separation between different tissue compartments.