Smooth muscle lacks the striated structure of skeletal muscle and instead consists of sheets or layers of smooth muscle cells. When stimulated by the autonomic nervous system to contract from the ...

Skeletal muscles move the bones in the body. The skeletal system is made from bones and joints. The femur bone in the thigh is the longest and strongest bone in the body. The smallest bones in the ...

New mechanisms discovered that show how development-dependent disruptions in mitochondrial function lead to premature skeletal aging.