If a defect occurs in a developing human fetus that stops the transmission of signals between cells in cardiac muscle,which structure is most likely involved?
A) Myosin
B) Intercalated discs
C) Mitochondria
D) T tubules
E) Sarcoplasmic reticulum

Question

Quizplus · Accepted Answer

Intercalated discs are specialized connections between cardiac muscle cells that allow for the transmission of signals between cells, coordinating the contraction of the heart muscle. If there is a defect in these structures, the signals between cells may be disrupted, leading to heart abnormalities. Myosin, mitochondria, T tubules, and sarcoplasmic reticulum are all important structures in cardiac muscle, but they are not directly involved in the transmission of signals between cells.

If a Defect Occurs in a Developing Human Fetus That