Concept #1: Skeletal Muscle Contractions
Concept #2: Contraction Steps
Practice: Which of the following is not a structure of the sarcomere?
Practice: Which of the following structures is composed of actin, but no myosin?
Practice: When calcium binds to troponin, what happens to tropomyosin?
Practice: When a cross-bridge structure is formed during a muscle contraction, the band lengths shorten and contract.