In humans, the embryo is protected in

Options

A. Amniotic cavity
B. Peritoneal cavity
C. Pleural cavity
D. Allantois

Answer

The question asks about the protection of the embryo in humans. Let's break down the answer step by step.

### Step 1: Understanding Embryonic Development
In humans, the development of the embryo occurs after fertilization. The embryo is formed from the zygote and undergoes several stages of development.

**Hint:** Think about the stages of development after fertilization and where the embryo is located.

### Step 2: Identifying Protective Structures
During its development, the embryo is protected by several structures. The most significant protective structures include the amniotic sac, chorion, and the placenta.

**Hint:** Consider the different membranes and structures that surround and support the embryo.

### Step 3: The Role of the Amniotic Sac
The amniotic sac is filled with amniotic fluid, which cushions the embryo and protects it from physical shocks. This fluid also helps maintain a stable temperature and provides a medium for the embryo to move.

**Hint:** Recall the function of the fluid surrounding the embryo and how it aids in protection.

### Step 4: The Role of the Placenta
The placenta is another crucial structure that provides nutrients and oxygen to the developing embryo while also removing waste products. It acts as a barrier to protect the embryo from harmful substances in the mother's blood.

**Hint:** Think about how the placenta functions as both a nutrient source and a protective barrier.

### Step 5: Conclusion
In conclusion, the embryo in humans is primarily protected by the amniotic sac and the placenta. These structures play vital roles in safeguarding the embryo during its development.

**Final Answer:** The embryo in humans is protected by the amniotic sac and the placenta.

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