ClipArt ETC
A small bit of muscle composed of five primary fasciculi (bundles). Labels: A, natural size; B, the same magnified, showing the secondary fasciculi of which the primary are composed.

Muscle Fibers

A small bit of muscle composed of five primary fasciculi (bundles). Labels: A, natural size; B, the…

A small piece of muscular fiber highly magnified. At a the fiber has been crushed and twisted so as to tear away its contents, while the tougher sarcolemma, elsewhere so closely applied to the rest as to be invisible, remains untorn and conspicuous.

Muscle Fibers

A small piece of muscular fiber highly magnified. At a the fiber has been crushed and twisted so as…

Muscle fibers from the heart showing the striations and the junctions of the cells, highly magnified.

Muscle Fibers

Muscle fibers from the heart showing the striations and the junctions of the cells, highly magnified.