Question

Which is correct? Muscles grow before bones. Bones grow before muscles. Muscles and bones grow at the same rate.

Answer 1

Bones grow and then your muscles grows according to your muscles.

Answer 2

The correct answer is: Muscles grow before bones.

Step-by-step explanation:

Both the bones and the muscles come from the same intraembryonic tissue: the mesoderm, which is divided into paraxial, intermediate, and lateral. Bones and muscles (and cartilages) come from the somites that generate from the paraxial mesoderm in 3rd week.

Even though the signaling for bones appears sooner than the signaling for muscles, the muscles are said to grow first. Cells that will form the muscle tissue arrive at their specific position thanks to the information given by the cartilage (which will later generate the bone).

Muscles grow before bones because bones take much longer to grow. Long bones, such as the femur, don't stop growing until early adulthood. For the growing to be possible, there is cartilage in the immature bone that will later and progressively be replaced by bone tissue.