Medical research

Newfound autoimmune syndrome causes muscle pain, weakness

A previously unknown autoimmune muscle disease involving sudden onset of debilitating muscle pain and weakness has been identified by researchers at Washington University School of Medicine in St. Louis. The syndrome easily ...

Medical research

Lithium boosts muscle strength in mice with rare muscular dystrophy

Standing up from a chair, climbing stairs, brushing one's hair – all can be a struggle for people with a rare form of muscular dystrophy that causes progressive weakness in the shoulders and hips. Over time, many such people ...

Sports Medicine & Kinesiology

Study of female weightlifters crushes stereotype

In the first-ever study of its kind, San Francisco State University and California State University, Fullerton researchers found that elite women weightlifters have the same amount—and in some cases more—of the muscle ...

Medical research

Muscle memory discovery ends 'use it or lose it' dogma

The old adage "use it or lose it" tells us: if you stop using your muscles, they'll shrink. Until recently, scientists thought this meant that nuclei—the cell control centers that build and maintain muscle fibers—are ...

Neuroscience

Testing new drugs with 'ALS-on-a-chip'

There is no cure for amyotrophic lateral sclerosis (ALS), a disease that gradually kills off the motor neurons that control muscles and is diagnosed in nearly 6,000 people per year in the United States.

page 1 from 13

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