Medical research

Surplus antioxidants are pathogenic for hearts and skeletal muscle

Many heart diseases are linked to oxidative stress, an overabundance of reactive oxygen species. The body reacts to reduce oxidative stress—where the redox teeter-totter has gone too far up—through production of endogenous ...

Medical research

Substituting the next-best protein

When an actor is unable to perform in the theatre, an understudy—ideally one with some practice in the role—can take her place on stage. A study from Dr. Bernard Jasmin's laboratory at the University of Ottawa and published ...

page 1 from 31

Skeletal muscle

Skeletal muscle is a form of striated muscle tissue existing under control of the somatic nervous system. It is one of three major muscle types, the others being cardiac and smooth muscle. As its name suggests, skeletal muscle is linked to bone by bundles of collagen fibers known as tendons.

Skeletal muscle is made up of individual components known as muscle fibers. These fibers are long, cylindrical, multinucleated cells composed of actin and myosin myofibrils repeated as a sarcomere, the basic functional unit of the cell and responsible for skeletal muscle's striated appearance and forming the basic machinery necessary for muscle contraction. The term muscle refers to multiple bundles of muscle fibers held together by connective tissue.

This text uses material from Wikipedia, licensed under CC BY-SA