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

28. Human Development

Embryonic Development (Weeks 3-8)

Anatomy & Physiology

28. Human Development

Embryonic Development (Weeks 3-8)

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Multiple Choice

Which of the following occurs during the embryonic development period from weeks 3 to 8?

Formation of the placenta

Development of the fetal heartbeat

Formation of the neural tube

Rapid growth of the fetus

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Verified step by step guidance

Understand the timeline of embryonic development: The embryonic period spans from weeks 3 to 8 after fertilization. This is a critical phase where major organs and structures begin to form.

Identify key processes during the embryonic period: During this time, the embryo undergoes significant changes, including the formation of the neural tube, which eventually develops into the central nervous system (brain and spinal cord).

Differentiate between embryonic and fetal development: The fetal period follows the embryonic period, starting from week 9 until birth. Rapid growth and further development of organs occur during the fetal period.

Recognize the formation of the neural tube: The neural tube formation is a crucial event in the embryonic period, typically occurring around the third week. It begins with the folding of the neural plate and closure of the neural folds.

Clarify the other options: The formation of the placenta and development of the fetal heartbeat are processes that begin during the embryonic period but continue into the fetal period. Rapid growth of the fetus is characteristic of the fetal period, not the embryonic period.