which of these is an important difference between cardiac muscle and skeletal muscle quizlet
1. Like skeletal muscle, cardiac muscle is striated, contains the same basic contractile proteins forming thick and thin filaments, organized in sarcomeres, and has the same sliding filament mechanism 2.Cardiac cells contain myofibrils, T-tubules, and SR.ike skeletal muscle, cardiac muscle is striated, contains the same basic contractile proteins forming thick and thin filaments, organized in sarcomeres, and has the same sliding filament mechanism 2. Cardiac cells contain myofibrils, T-tubules, and SR.