Question:
During embryonic development, mesoderm forms all types of muscles in human except ____.
During embryonic development, mesoderm forms all types of muscles in human except ____.
Show Hint
Muscles of the iris and ciliary body arise from ectoderm, not mesoderm.
Updated On: Nov 12, 2026
- interstitial muscles
- ciliary muscles
- tongue muscles
- diaphragm
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Most muscles, including skeletal, smooth and cardiac muscles, develop from mesoderm.
Step 2: Find the exception
The tongue muscles and the diaphragm are skeletal muscles and come from mesoderm. The muscles of the iris and ciliary body of the eye develop from ectoderm.
Step 3: Why the other options fail
Interstitial muscles, tongue muscles and the diaphragm all come from mesoderm, so they cannot be the exception.
Final Answer:
Mesoderm does not form the ciliary muscles. \[ \boxed{\text{(B) }\text{ciliary muscles}} \]
Most muscles, including skeletal, smooth and cardiac muscles, develop from mesoderm.
Step 2: Find the exception
The tongue muscles and the diaphragm are skeletal muscles and come from mesoderm. The muscles of the iris and ciliary body of the eye develop from ectoderm.
Step 3: Why the other options fail
Interstitial muscles, tongue muscles and the diaphragm all come from mesoderm, so they cannot be the exception.
Final Answer:
Mesoderm does not form the ciliary muscles. \[ \boxed{\text{(B) }\text{ciliary muscles}} \]
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