Which is a feature of cardiac muscle that helps the heart withstand high pressures without tearing?
A) Branching and intertwined fibers
B) Fibers arranged in parallel
C) A single nucleus possessed by each fiber
D) Gap junctions between fibers
E) The pacemaking functions of some fibers

Question

Quizplus · Accepted Answer

The branching and intertwined fibers of cardiac muscle allow for the heart to contract with force and withstand high pressure without tearing. This arrangement also allows for coordinated contraction and helps with efficiency of pumping blood.

Which Is a Feature of Cardiac Muscle That Helps the Heart