0
Which electrolyte helps regulate cardiac impulse transmission and muscle contraction?
Potassium has the main direct effect on cardiac impulse transmission and muscle contraction. However, potassium (K+) and sodium (Na) have an inverse relationship; when one is increased the olther is decreased. In cardiac health, both must be balanced to effect homeostasis. This is why repeat electrolyte lab values and cardiac enzymes are so important in unstable cardiac patients.
What else can I help you with?
Which electrolyte has a major role in muscle contraction and high or low levels of it can leacd to cardiac arrest?
potassium
What structure allows for uniform contraction of the cardiac muscle?
The intercalated discs are specialized structures in cardiac muscle that allow for uniform contraction. They contain gap junctions, which allow for rapid electrical communication between cells, ensuring synchronous contraction of the heart muscle. Additionally, desmosomes in the intercalated discs help to physically link neighboring cardiac muscle cells, allowing for force transmission during contraction.
What ion is necessary for cardiac contraction to occur?
calcium is te most important ion in cardiac contraction , whereas the contraction starts by the Na .
Does cardiac electrical activity immediately precede the contraction of the cardiac muscle?
Yes
What does the t wave measure?
The T wave on an electrocardiogram (ECG) represents ventricular repolarization, or the recovery phase of the heart muscle after contraction. Abnormalities in the T wave can indicate possible cardiac issues, such as ischemia or electrolyte imbalances.
Term for the blood pumped in a single contraction?
Cardiac volume is the blood pumped in a single contraction
What is the name given to contraction phase of the cardiac cycle?
The contraction phase of the cardiac cycle is called systole. This is when the heart muscle contracts to pump blood out of the heart and into the circulatory system.
What is automaticity of the heart?
The property that allows any cell in the cardiac muscle to begin an action potential, or a cardiac conduction, leading to cardiac contraction.
The R wave of the ECG is most closely associated with which phase of the cardiac contraction cycle?
The R wave of the ECG is most closely associated with the depolarization of the ventricles during the cardiac contraction cycle, specifically with the QRS complex. This represents the initiation of ventricular contraction.
Basic unit of contraction in skeletal and cardiac muscle?
The Sarcomere
What type of muscle show rythemic contraction?
Cardiac muscles.
What muscles are straited?
smooth skeletal cardiac and contraction mbroro
