Multiple Choice
Which of the following vessels carries oxygenated blood to the liver from the placenta during fetal development?
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28. Human Development
Introduction to Human Development
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In human development, what does the ectoderm give rise to?
A
The muscular system
B
The nervous system and skin
C
The digestive tract lining
D
The circulatory system
Verified step by step guidance1
Understand the three primary germ layers in human development: ectoderm, mesoderm, and endoderm.
Recognize that the ectoderm is the outermost layer of the embryo.
Identify the structures that the ectoderm develops into, which include the nervous system and the skin.
Differentiate between the roles of the other germ layers: the mesoderm gives rise to the muscular system and circulatory system, while the endoderm forms the lining of the digestive tract.
Conclude that the ectoderm is responsible for forming the nervous system and skin, not the muscular system, digestive tract lining, or circulatory system.
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