MHT CET Medical202622 April 2026Evening ShiftBiologyHuman ReproductionActual
During embryonic development, mesoderm forms all types of muscles in human except ____.
Options
- Ainterstitial muscles
- Bciliary muscles
- Ctongue muscles
- Ddiaphragm
Correct answer
B. ciliary muscles
Step-by-step solution
During embryonic development, almost all muscles in the human body are derived from the mesoderm. However, there are a few exceptions. The ciliary muscles and the muscles of the iris (sphincter pupillae and dilator pupillae) in the eye are derived from the neuroectoderm (ectoderm). Tongue muscles, diaphragm, and other skeletal or smooth muscles are mesodermal in origin. Answer: ciliary muscles