Asked in Muscular System
How is smooth muscle similar to skeletal muscle?
June 05, 2012 5:20AM
Both skeletal and smooth muscle contain actin and myosin filaments, which form cross-bridges in order for the muscle to contract. Both also contain a sarcoplasmic reticulum - which stores calcium. In both muscle types, this calcium allows for cross-bridge formation between the actin and myosin filaments when it is released (it acts directly on myosin in smooth muscle and acts indirectly in skeletal muscle).