Muscle cells and muscle fibres are developed from embryonic precursor cells known as:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. myoblasts.
The correct answer is myoblasts. Muscle cells and muscle fibres originate from these embryonic precursor cells. Myoblasts are undifferentiated, mononucleated cells that proliferate and eventually fuse to form multinucleated muscle fibres or myocytes. These fibres contain myofibrils, the contractile elements responsible for muscle function. Myonuclei are nuclei within mature muscle fibres, myocytes are the differentiated muscle cells, and myofibrils are structural components inside them. Thus, myoblasts serve as the foundation for muscle development during embryonic growth.