MICROANATOMY

Detailed explanation-1: -The protein actin is abundant in all eukaryotic cells. It was first discovered in skeletal muscle, where actin filaments slide along filaments of another protein called myosin to make the cells contract. (In nonmuscle cells, actin filaments are less organized and myosin is much less prominent.)

Detailed explanation-2: -Actin and myosin are both proteins that are found in every type of muscle tissue. Thick myosin filaments and thin actin filaments work together to generate muscle contractions and movement. Myosin is a type of molecular motor and converts chemical energy released from ATP into mechanical energy.

Detailed explanation-3: -Abundance in muscle cells Actin filaments are more abundant than myosin. Myosin is less abundant compared to actin. There is one myosin for each actin filament.