Match each term with its corresponding definition or description.
-inward extensions of the sarcolemma that allow impulses to go deeper into the cell
A)Actin
B)Sarcolemma
C)Contractility
D)Tropomyosin
E)Extensibility
F)Myosin
G)T-tubule
H)Irritability
I)Sarcomere
J)Troponin
K)Motor unit

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 cell membrane of a muscle cell.

Answer: F
 Myosin is a protein that forms the thick filaments in muscle cells.

Answer: H
 Irritability is the ability of a muscle to respond to a stimulus, such as a nerve impulse.

Answer: G
 Tropomyosin is a protein involved in regulating muscle contraction.

Answer: J
 Troponin is a protein involved in regulating muscle contraction, specifically in controlling the movement of tropomyosin.

Answer: I
 A sarcomere is the basic structural unit of a muscle, consisting of overlapping filaments of actin and myosin.

Answer: E
 Extensibility is the ability of a muscle to be stretched.

Answer: C
 Contractility is the ability of a muscle to shorten and generate force.

Answer: K
 A motor unit is a group of muscle fibers controlled by a single motor neuron.

Match Each Term with Its Corresponding Definition or Description