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When does the following terms describes myocardial contraction and relaxation?
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Which of the following best describes the events of excitation in excitation-contraction coupling?
Propagation of the action potential along the sarcolemma
Which is the following words means pertaining to the heart and blood vessels?
Myocardial
What causes rhythmic beating of the heart?
When blood and air is tranferred into the heart, the heart has to start beating unless we are dead.The rhythmic beating of the heart is maintained by the Sinoatrial node (80-100 beats/minute), the Atrioventricular node (40-60 beats/minute) or the Purkinje fibers (20-40 beats/minute). It involves the membrane potential of specialized myocardial cells in these parts. Once regions of the heart are fully depolarized (such as the ventricles), contraction follows. Immediately following depolarization comes repolarization, and thus the cycle can repeat itself.How_is_the_rhythmic_beating_of_the_heart_maintained
Which of te following is not a function of bones hematopoiesis contraction support protection storage of minerals?
contraction
What is the formula for Lorentz contraction?
Lorentz contraction, or length contraction, coresponds to following formula: l = l0 * sqrt(1-V2/c2)
What is an aftermovement?
An aftermovement is the movement of a limb following the contraction of a muscle.
Which of the following transformations preserves the lengths of the sides of the figure?
contraction
Which of the following describes a cytotoxic autoimmune reaction?
Which of the following (what)?
What is the scientific name for a heart attack?
Myocardial infarction (often abbreviated MI) is the medical terminology for heart attack. An MI occurs when a blood clot reaches cardiac tissue resulting in death of the affected area. Normally tests for such a condition would include blood tests (e.g. troponin T) and ECG. Occaisionally an echocardiogram might be ordered to establish an ejection fraction.Myocardial infarction (MI) or acute myocardial infarction (AMI), is commonly known as a heart attack.Cardiac ArrestYou can call it a 'myocardial infarction' if you want. I'd stick with 'heart attack' because people don't say "huh?".It can also be known as either of the following: Acute myocardial infarction (AMI for short) Or Myocardial infarction (or MI for short).
Which of the following was no a characteristic of the post-war of 1812 economic nationalism?
the relaxation of high tariffs
Which statement describes the rate of change of the following function?
Which statement describes the rate of change of the following function?f(x) = -6x - 9
Which one of the following best describes volcanism in the Andes Mountains of South America?
When the following information is not given people will not be able to know which describes the volcanism. The information on what the following is should be included.
