Actin (thin myofilament), myosin (thick myofilament), calcium, and ATP (energy).
protein that makes up thin myofilament
The protein that makes up the thick myofilament in muscle cells is called myosin. Myosin is a motor protein that plays a key role in muscle contraction by interacting with actin, the protein in the thin myofilament.
Myosin
thin bones, muscles and feathers
Skeletal muscle tissue is made up of long, thin cells called muscle fibers. These fibers contain multiple nuclei and are striated in appearance. Skeletal muscles are responsible for voluntary movements in the body.
No, actin filaments outnumber myosin filaments in skeletal muscles. Actin filaments are thin filaments, while myosin filaments are thick filaments. The arrangement and interplay of these filaments during muscle contractions are essential for movement.
Skeletal muscle cells are much bigger than cardiac muscle cells. Skeletal muscle fibres are up to 100 micrometers in diameter and several centimeters long while cardiac myocytes are about 15 micrometers in diameter and about 100 micrometers long.
What everyone calls the abs are thin muscles of the body.
muscles
Myofilaments are the protein fibers within muscle cells that slide past each other to cause muscle contractions. There are two main types of myofilaments: thin filaments, made up of actin protein, and thick filaments, made up of myosin protein. The interaction between these two types of filaments is essential for muscle contraction.
Skeletal muscles look like long muscle fibers with a nuclei in each one, looks striated or striped. Compared to a smooth muscle that looks like sheets of thin cells each have a nucleus as well but looks smooth.