Actin
The two filaments involved are myosin and actin. Actin: is the framework and slides over the myosin filament when the muscle is shortened. myosin: is a thick filament Also a sacromere: is made up of the actin and myosin. It is the functional unit of a muscle fibre and extends from z line to z line. A muscle contraction: is many sacromeres shortening ( actin sliding over myosin)
Actin and Myosin
actin
Actin, myosin
actin and myosin
Sarcomeres contain myofilaments which consist of actin (thin) and Myosin (thick).
Microfilaments are made of protein strands called actin.
Thick filaments are made of the protein myosin and thin filaments are made of the protein actin. Myosin and actin filaments are arranged to form and overlapping pattern which gives muscle tissue its striated appearance.
Microfilaments (in cytoskeleton) and thin filaments (in muscle cells) are both polymers of actin.
Microfilaments.
actin, troponin, tropomyosinMyosin