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What causes a surface wave?
A surface wave is caused by an earthquake. When the earthquake causes primary, and secondary waves to interact, a surface wave is formed.
Which type of wave causes the medium to vibrate perpendicular to the direction of the wave?
Transverse Wave.
What causes wave deffraction?
Barriers
What causes a sound wave to form?
When matter vibrates it sends out a sound wave.
What is a wave which causes the particles of the medium to move in the same direction that the wave is traveling?
It's called a longitudinal wave.
What is the primary function of wave summation?
produce smooth, continuous muscle contraction
When the frequency of stimulation of a muscle is great enough?
wave summation results and muscle twitches overlap.
What is summation in muscle physiology?
In skeletal muscle contraction, summation means increasing the number of stimuli that is delivered to a given motor unit per time. This increases the Calcium concentration, which causes more tension and shortening of the muscles.
What is the difference between wave summation and recruitment?
Wave summation releases more calcium and increases the force of contraction by increasing the firing rate of motor neurons (The second contraction takes place before the first is completely at rest) so each stimulation adds up. This is all within ONE MUSCLE FIBER. Recruitment is the calling up multiple MOTOR UNITS, in order to increase the force of contraction. t has a size principle (those with small diameters, the more delicate ones are called first, then the larger and so on.) There is no added calcium ions as in wave summation. They usually occur together. wave summation can cause tetanus, while recruitment cannot.
What is the difference between wave summation and tetanus?
in wave summation muscular fibers recieve second stimulus after a refractory period and before fiber relaxes while in tetanus the fiber receives 20-30 stimuli per second and it relax partialy.
What happens to the strength of contraction during wave summation?
It increases about to about four times greater than a normal contraction for skeletal muscle.
What causes a surface wave?
A surface wave is caused by an earthquake. When the earthquake causes primary, and secondary waves to interact, a surface wave is formed.
Why is a summation greater than an integral?
It's not. It depends on the method you use for summation whether summation > integral or integral > summation.
What seismic wave causes the most damage?
Seismic wave
Which type of wave causes the medium to vibrate perpendicular to the direction of the wave?
Transverse Wave.
What wave summation results in stronger contractions at the same stimulus strength because the muscle doesn't have time to completely what between successive stimuli?
Relax
What is hydrochloric action?
Hey, Hydrochloric action is where a wave hits a rock and causes cracks. When a wave hits the rock, it isn't the wave that causes the crack, it's the air pressure trapped from the wave.
