Match each term with its corresponding definition or description.
-Inward extensions of the sarcolemma that allow impulses to go deeper into the cell

Question

Quizplus · Accepted Answer

T-tubules are inward extensions of the sarcolemma that allow impulses to go deeper into the cell.

Answer: B
 Sarcolemma is the specialized plasma membrane that surrounds muscle fibers and separates them from the extracellular fluid.

Answer: F
 Myosin is a contractile protein that functions as a molecular motor to generate force and movement.

Answer: H
 Irritability (also known as responsiveness) is the ability of muscle tissue to respond to stimuli by generating electrical impulses.

Answer: G
 Tropomyosin is a regulatory protein that covers the active sites on actin molecules and prevents myosin from binding to actin in the absence of calcium ions.

Answer: A
 Actin is a contractile protein that forms thin filaments in muscle fibers.

Answer: J
 Troponin is a regulatory protein that binds to calcium ions and plays a key role in regulating muscle contraction.

Answer: I
 Sarcomere is the functional unit of striated muscle tissue, consisting of a repeating pattern of thick and thin filaments arranged in a precise geometric pattern.

Answer: K
 Motor unit is a single motor neuron and all the muscle fibers it innervates, working together to generate force and movement.

Answer: E
 Extensibility is the ability of muscle tissue to stretch and lengthen in response to tension or load.

Match Each Term with Its Corresponding Definition or Description