Question:
Complete the analogy about the germinal layer from which it is formed.
Adrenal cortex : X :: Adrenal medulla : Y
Complete the analogy about the germinal layer from which it is formed.
Adrenal cortex : X :: Adrenal medulla : Y
Adrenal cortex : X :: Adrenal medulla : Y
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The two parts of the adrenal gland arise from different germ layers.
Updated On: Nov 12, 2026
- X - Mesoderm Y - Ectoderm
- X - Mesoderm Y - Endoderm
- X - Ectoderm Y - Endoderm
- X - Ectoderm Y - Mesoderm
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
The adrenal cortex and medulla have different embryonic origins.
Step 2: Origins
The adrenal cortex arises from mesoderm (coelomic epithelium).
The adrenal medulla arises from neural crest cells, which are ectodermal, so it acts like a modified sympathetic ganglion.
Step 3: Compare the options
So X is mesoderm and Y is ectoderm, which is the first option.
Final Answer:
The cortex is from mesoderm and the medulla is from ectoderm. \[ \boxed{\text{(A) }\text{X - Mesoderm, Y - Ectoderm}} \]
The adrenal cortex and medulla have different embryonic origins.
Step 2: Origins
The adrenal cortex arises from mesoderm (coelomic epithelium).
The adrenal medulla arises from neural crest cells, which are ectodermal, so it acts like a modified sympathetic ganglion.
Step 3: Compare the options
So X is mesoderm and Y is ectoderm, which is the first option.
Final Answer:
The cortex is from mesoderm and the medulla is from ectoderm. \[ \boxed{\text{(A) }\text{X - Mesoderm, Y - Ectoderm}} \]
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