Match each definition in the first column to the correct term in the second column.
-Delivers the signals from the motor neuron to every sarcomere of the muscle cell.

Question

Quizplus · Accepted Answer

Transverse tubules deliver the signals from the motor neuron to every sarcomere of the muscle cell.

Answer: J 
 Calcium ions are necessary for muscle contraction.

Answer: C 
 Tendons connect muscles to bones.

Answer: D 
 A muscle twitch is a single, brief contraction of a muscle fiber.

Answer: E 
 Fast twitch muscle fibers are specialized for rapid, forceful contractions.

Answer: F 
 Tropomyosin is a protein that blocks the myosin-binding sites on actin when the muscle is relaxed.

Answer: G 
 Myosin is a protein that forms thick filaments and helps to generate force during muscle contraction.

Answer: H 
 Troponin is a protein that regulates the interaction between actin and myosin during muscle contraction.

Answer: I 
 Slow twitch muscle fibers are specialized for sustained, low-intensity contractions.

Answer: K 
 Actin is a protein that forms thin filaments and helps to generate force during muscle contraction.

Answer: A 
 Lactic acid is a by-product of anaerobic metabolism that can build up in muscles during intense exercise.

Match Each Definition in the First Column to the Correct