Cardiac contractility is the force of contraction possible for any given length of the cardiac muscle. It is related to the intracellular calcium levels.
the strength of the contraction. The ability of the heart to contract independtely of preload and afterload.
increases the contractility of myocardial fibers
Increased myocardial contractility increases the oxygen demand for the myocardial cells. If the demand of oxygen exceeds the supply, death of myocardial tissue can occur.
Increase in heart rate as Cardiac Output = Heart rate x Stroke volume. As SV will be decreased, HR increases to compensate.
Myocardial cells lines the muscular walls of heart tissues (contractility and extensibility) Electrical cells is the conduction system of the heart. Can be conducted 3 ways: automaticity that generates action potential, excitability that responds to electrical impulses and conductivity transmit an electrical impulses from one cell to the next
arteries
contractility
Gastroparesis is the medical term meaning poor contractility of the stomach. It often, but not always, is a complication of diabetes.
Acute Myocardial Infarction (AMI).
It doesn't - "contractility" refers to the force generated at any given length of muscle. Therefore although the force of contraction does increase with filling, the contractility does not.The reason the force of contraction increases with filling is because filling stretches the heart muscles. Increased stretch causes an increase in force of contraction.Contractility changes because of changes in the level of intracellular calcium. This can be changed by things such as adrenalin (epinephrine), which increases contractility and β blockers, which decrease contractility.
The abbreviation for myocardial infarction is M.I.
This means relating to the muscle tissue of the heart. Here are some sentences.He suffered a myocardial infarction, or heart attack.The disease caused myocardial damage.He has a myocardial infection.
Myocardial is accented on the third syllable.