Which of the following could you find in the lumen of a transverse tubule?
A)extracellular fluid
B)cytoplasm
C)actin
D)myosin
E)sarcomeres

Question

Quizplus · Accepted Answer

The lumen of a transverse tubule is an extension of the extracellular fluid, allowing for rapid transmission of action potentials throughout the muscle fiber. Therefore, extracellular fluid could be found in the lumen of a transverse tubule. The other choices (B-E) are components of the muscle fiber and would not typically be found in the lumen of a transverse tubule.

Which of the Following Could You Find in the Lumen