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Muscles with similar functions are connected by ————-.

A disease caused by a deficiency of Vitamin D and calcium salts in the bone.

The deepest of the abdominal muscles is the _________.

The muscle that extends the forearm is the _________.

The major components of the axial skeleton include _________

Contraction of myofibrils results from _________ cross-bridges pulling _________ myofilaments to the center of a sarcomere.

The pelvic girdle is comprised of _________

There are five _________vertebrae, seven _________vertebrae, and twelve _________vertebrae. 

A _________ contains a somatic motor neuron and all of the muscle cells that it innervates.