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Tonic muscle contractions are sustained and steady, while phasic muscle contractions are brief and intense. Tonic contractions last longer and have a lower intensity, while phasic contractions are shorter in duration but have a higher intensity.

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5mo ago

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What are the differences between phasic and tonic muscle contractions?

Phasic muscle contractions are quick and powerful, used for activities like jumping or throwing. Tonic muscle contractions are sustained and steady, used for activities like maintaining posture or holding a position.


What are the key differences between premature atrial contractions (PAC) and premature ventricular contractions (PVC) as seen on an electrocardiogram (ECG)?

Premature atrial contractions (PAC) are early heartbeats originating in the atria, while premature ventricular contractions (PVC) are early heartbeats originating in the ventricles. On an ECG, PACs typically show a P wave that looks different from the normal sinus rhythm, while PVCs show a wide and bizarre QRS complex.


Differences in separation and band intensity between your gel and the ideal gel?

The differences in separation and band intensity between a gel and the ideal gel may arise due to variations in gel preparation, running conditions, and sample quality. Issues like uneven gel casting, improper buffer preparation, or incorrect voltage settings can lead to poor band resolution and intensity. Inconsistent sample loading, DNA quality, or dye migration can also affect band clarity and separation in the gel. Purification steps and troubleshooting during gel electrophoresis can help address these discrepancies.


What are the two cues that help us localize sound are?

Arrival time and intensity difference. Due to the different spacial positioning and orientation of the ears, a sound wave will arrive at each ear at slightly different times and with slightly different intensity. For example, if a sound originates to the right of a person, the sound will reach the right ear first and the right ear will experience a greater intensity. These very small differences are integrated in the nervous system and are manifested as the ability to localize sound.


What are the key differences in the ECG findings between premature atrial contractions (PAC) and atrial fibrillation (AFib)?

Premature atrial contractions (PAC) show an early, abnormal heartbeat before the regular rhythm resumes, often with a normal ECG pattern. Atrial fibrillation (AFib) displays a chaotic, irregular heartbeat with no distinct P waves on the ECG, indicating disorganized atrial activity.

Related Questions

Why does electricity contact your muscles?

When electricity comes in contact with your muscles, it can disrupt the normal flow of signals between your nerves and muscles. This can lead to involuntary muscle contractions or even paralysis, depending on the intensity and duration of the electrical shock.


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 differences between phasic and tonic muscle contractions?

Phasic muscle contractions are quick and powerful, used for activities like jumping or throwing. Tonic muscle contractions are sustained and steady, used for activities like maintaining posture or holding a position.


What is the difference between intensity 2 and cosmos?

There are a few differences such as, the Cosmos is cheaper, Intensity 2 you can put full music songs on and other things too.


What is true about duration and frequency?

The running frequency and duration depends with the age and the altitude. For a maximum heart rate the training intensity is between 85 and 90 percent.


What is true about running duration and frequency?

The running frequency and duration depends with the age and the altitude. For a maximum heart rate the training intensity is between 85 and 90 percent.


Uncontrolled muscle contractions the same as skeletal muscle contractions?

Uhh, no uncontrolled muscle contraction occurs in smooth and cardiac muscles... there are many differences between these two types of muscles; controlled and uncontrolled muscle contraction.....


What is the difference between exercise duration and exercise intensity?

Duration is how long (minutes/hours) that you're working out. Intensity is how hard you're pushing. Are you sweating rivers, or are you just clammy? Can you carry a conversation, are you panting, or are you really struggling for breath?


What are the differences between sounds depends on the properties of the?

Sounds differ based on their frequency, amplitude, and duration. Frequency determines pitch (high or low), amplitude determines volume (loud or soft), and duration determines how long a sound lasts. Other properties like timbre (tone quality) and intensity also contribute to the unique characteristics of different sounds.


What are the main differences between methods of war during World War 2 and now?

WWII was the last declared total war. Atomic bombs (weapons) now restrict wars to either limited wars (no nukes) or military operations (low intensity and normally of quick duration).


Do the sun's rays shine equally on the northern and southern hemispheres?

No, the sun's rays do not shine equally on the northern and southern hemispheres. The angle of the sunlight varies based on the Earth's tilt, causing differences in sunlight intensity and duration between the two hemispheres. This is why we have seasons.


What is true about running and frequency?

The running frequency and duration depends with the age and the altitude. For a maximum heart rate the training intensity is between 85 and 90 percent.