Table of contents

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1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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

28. Human Development

Early Embryonic Development

Anatomy & Physiology

28. Human Development

Early Embryonic Development

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Multiple Choice

A hollow ball of cells created by cleavage is called a(n)?

Blastocyst.

Morula.

Trophoblast.

Embryoblast.

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Begin by understanding the process of early embryonic development, which includes stages such as fertilization, cleavage, and formation of structures like the morula and blastocyst.

Cleavage is a series of rapid mitotic divisions that occur after fertilization, leading to the formation of a multicellular structure from the zygote.

The morula is an early stage in embryonic development, consisting of a solid ball of cells resulting from cleavage. It precedes the formation of the blastocyst.

The blastocyst is a later stage in development, characterized by a hollow ball of cells. It consists of an outer layer called the trophoblast and an inner cell mass known as the embryoblast.

Identify the correct term for a hollow ball of cells formed by cleavage. Based on the descriptions, the blastocyst is the structure that fits this definition.