Match each definition in the first column to the correct term in the second column.
-Muscle fibers designed for rapid and powerful responses.

Question

Quizplus · Accepted Answer

Fast twitch muscle fibers are designed for rapid and powerful responses.

Answer: B
 Transverse tubules are invaginations of the sarcolemma that allow for the rapid transmission of the action potential to the interior of the muscle fiber.

Answer: C
 Tendons are tough bands of connective tissue that attach muscles to bones.

Answer: D
 Muscle twitch refers to a single, brief contraction of a muscle fiber in response to a stimulus.

Answer: E
 Fast twitch muscle fibers are designed for rapid and powerful responses.

Answer: F
 Tropomyosin is a protein that forms a complex with troponin and actin to regulate muscle contraction.

Answer: G
 Myosin is a motor protein that interacts with actin to produce muscle contractions.

Answer: H
 Troponin is a protein that forms a complex with tropomyosin and actin to regulate muscle contraction.

Answer: I
 Slow twitch muscle fibers are designed for endurance and sustained contractions.

Answer: J
 Calcium ions play a critical role in the regulation of muscle contraction.

Answer: K
 Actin is a protein that interacts with myosin to produce muscle contractions.

Match Each Definition in the First Column to the Correct