Muscle tissue’s red color comes from the type 1 fibers, which are rich in mitochondria and myoglobin, an iron- and oxygen-binding protein. Examining the tissue under a microscope, the ...

These have light and dark areas and create patterns of red and white lines called striation. Skeletal muscles are often called striated muscles. The sarcomeres allow your muscle fibers to contract ...

Muscles and nerve fibers allow a person to move their ... They have capillaries, which give them their red color. This type of muscle can contract for a long time without much effort.

It happens when muscle fibers die and release their contents into ... or lower back Muscle weakness or trouble moving arms and legs Dark red or brown urine or decreased urination Keep in mind ...

Muscle fibers are tubular muscle cells. Unlike other body cell types, they contain multiple nuclei, none of which can divide. Although protein synthesis can boost muscle mass, these non-dividing ...