Question:
Extra embryonic membrane that immediately surrounds and protects the embryo is
Extra embryonic membrane that immediately surrounds and protects the embryo is
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This membrane encloses the amniotic fluid.
Updated On: Nov 13, 2026
- chorion
- amnion
- yolk sac
- trophoblast
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Extra-embryonic membranes are chorion, amnion, yolk sac and allantois.
Step 2: Role of amnion
The amnion is the inner membrane that directly surrounds the embryo and contains amniotic fluid to protect it from shock.
Step 3: Compare the options
The chorion is the outer membrane, the yolk sac holds yolk and the trophoblast is the outer cell layer of the blastocyst. The amnion is correct.
Final Answer:
The amnion immediately surrounds and protects the embryo. \[ \boxed{\text{(B) }\text{amnion}} \]
Extra-embryonic membranes are chorion, amnion, yolk sac and allantois.
Step 2: Role of amnion
The amnion is the inner membrane that directly surrounds the embryo and contains amniotic fluid to protect it from shock.
Step 3: Compare the options
The chorion is the outer membrane, the yolk sac holds yolk and the trophoblast is the outer cell layer of the blastocyst. The amnion is correct.
Final Answer:
The amnion immediately surrounds and protects the embryo. \[ \boxed{\text{(B) }\text{amnion}} \]
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