Answer:
False
Explanation:
The papillary muscles of both right and left ventricles began to contract shortly before the other ventricular muscles (systole) so that they can take up the slack on the chordae tendineae as the full force of ventricular contractions sends blood against the atrioventricular (AV) valve flaps.
They prevent the backward flow of blood to atria from ventricles. So if they contract after the ventricle systole they would not be able to perform their job.
True Skeletal muscles are the muscles that move your bones; these
muscles are voluntary, meaning they are under your control
True Eventually, all skeletal muscles get tired.
True Cardiac muscle is found in your heart and it is involuntary:
that is, NOT under your control.
True The best way to keep your muscles healthy is to use them.
An in-breath is that you are breathing in Oxygen. And and out-breath you are breathing out Carbon Dioxide