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

Levels of Organization

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Levels of Organization

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Multiple Choice

Which term describes a body cavity that is lined partly with mesoderm and partly with endoderm?

Acoelom

Blastocoel

Pseudocoelom

Coelom

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Verified step by step guidance

Understand the question: The problem is asking about a body cavity that is lined partly with mesoderm and partly with endoderm. This requires knowledge of embryonic tissue layers and body cavity types.

Review the definitions of the terms provided: Acoelom refers to an organism without a body cavity, Blastocoel is a fluid-filled cavity in the blastula stage of development, Pseudocoelom is a body cavity partially lined with mesoderm and endoderm, and Coelom is a body cavity completely lined with mesoderm.

Focus on the key characteristic in the question: The cavity is only partially lined with mesoderm and endoderm. This eliminates Coelom, as it is fully lined with mesoderm, and Acoelom, as it lacks a cavity entirely.

Eliminate Blastocoel: While it is a cavity, it is specific to the early embryonic stage and not a body cavity in the mature organism.

Conclude that the correct term is Pseudocoelom, as it matches the description of being partially lined with mesoderm and endoderm.