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What is the muscle that normally exhibits arrhythmic contractions?
The heart muscle is the muscle that normally exhibits arrhythmic contractions. These contractions are controlled by the heart's internal pacemaker system, which generates electrical signals to regulate the heart rate and rhythm.
Quivering or spontaneous muscle contractions especially of the heart is called?
fibrillation
A deficiency of parathyroid hormone can cause involuntary muscle contractions of a type called?
Tetany is the term for the muscle contractions that may be caused by hypoparathyroidism.
Potassium poisoning causes and symptoms?
Arrhthmyia of the heart, problems with smooth and skeletal muscle contractions; hyperkalemia can even stop the heart muscle.
What conditions cause contractions of arteriole smooth muscle?
Asthma causes contraction of the bronchial smooth muscle.
Can you die from electric shock?
Yes. If strong enough, the electric current can cause intense muscle contractions. The muscle contractions can fatigue the muscle, depleting it of nutrients and electrolytes. When that happens, the muscle is incapable of functioning, and if the muscle happens to be your heart, you die. CPR can be helpful because it brings nutrients back to the heart muscle and provides sufficient blood flow to keep the individual alive until the heart can start again. In general, the effects of electric shock are immediate. If the voltage and current are high enough, an electric shock can burn tissue causing permanent damage.
What is the difference between myogenic and neurogenic muscle?
Myogenic muscle contractions are initiated by the muscle cells themselves without external neural stimulation, such as in the heart muscle. Neurogenic muscle contractions require neural input to initiate and control muscle activity, such as in skeletal muscles controlled by the somatic nervous system.
What are the differences between isometric, concentric, and eccentric muscle contractions?
Isometric muscle contractions happen when the muscle stays the same length, concentric contractions occur when the muscle shortens, and eccentric contractions occur when the muscle lengthens.
What are the effects of cardiotonics and anticoagulant merdication?
cardiotonics increase the strenght of the muscle contractions that pump blood from the heart.
What type of muscle is found in the heart that has gap junctions to allow electrochemical signals to cause rapid contraction?
The type of muscle found in the heart is cardiac muscle. Cardiac muscle cells, or cardiomyocytes, are interconnected by gap junctions, which facilitate the rapid transmission of electrochemical signals. This allows for synchronized contractions of the heart, enabling efficient pumping of blood. Unlike skeletal muscle, cardiac muscle is involuntary and has a unique rhythmic contraction pattern essential for maintaining circulation.
Why is it important that summation not occur in heart muscle?
Basic muscle summation -an increase in the frequency with which a muscle is stimulated increases the strength of contraction. With increased stimuli to the heart if summation occurred the contractions would keep increasing.
Do muscle contractions cause menstrual cramps?
No, not quite.Prostaglandins are produced which cause the uterine contractions to push out menstrual flow, in a healthy woman this should not be painful. It's when the prostagladins are overproduced that menstrual cramps occur as these cause blood vessels to contract so cut off oxygen to the muscle.
