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* Hypovolemic shock. The single most common cause of shock is blood volume loss, resulting from a serious wound or a severe burn leading to hypovolemic shock. * Cardiogenic shock is caused by the failure of the heart to pump effectively. This can be due to damage to the heart muscle, most often from a large myocardial infarction. Other causes of cardiogenic shock include arrhythmias, or cardiac valve problems. * Distributive shock. As in hypovolemic shock there is an insufficient volume of blood. This form of relative hypovolaemia is the result of dilation of bloodvessels. Examples of this form of shock are: * Septic shock is caused by overwhelming infection leading to vasodilation. It is treated by antibiotics, fluid replacement, and vasoconstrictors. * Acute adrenal insufficiency is not infrequently the result of discontinuing corticosteroid treatment without tapering the dosage. * Less commonly severe anaphylactic reactions may cause anaphylactic shock as allergens trigger widespread vasodilation and movement of fluid out of the blood into the tissues. * The rarest cause of shock is acute spinal cord injury leading to neurogenic shock. Neurogenic shock is caused by the sudden loss of the sympathetic nervous system signals to the smooth muscle in vessel walls. Without this constant stimulation the vessels relax resulting in a sudden decrease in peripheral vascular resistance and decreased blood pressure. * Obstructive shock. Hereby the flow of blood is obstructed. Several conditions result in this form of shock. * Cardiac tamponade, in which blood in the pericardium prevents inflow of blood into the heart (venous return). Or constrictive pericarditis which has the same effect. * Pneumothorax. Through increased intrathoracic pressure bloodflow to the heart is prevented (venous return). * Pulmonary embolism is the result of a thromboembolic incident in bloodvessels of the lungs and hinders the return of blood to the heart.
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How scientists use seismic waves to map the earth's interior?
Scientists use seismic waves to map Earth's interior by using seismographs that measure the times at which seismic waves arrive at different distances from an earthquake.
How can you use 'seismic waves' in a sentence?
Seismic waves occur when there is an earthquake.
The last seismic waves to arrive are?
The last seismic waves to arrive are surface waves.
Which type of seismic waves arrives at distant points before any other seismic waves?
Primary waves are seismic waves and the arrive first after an earthquake occurs.
What does the time-distance graph of seismic waves show?
The time-distance graph of seismic waves shows the relationship between the time it takes for seismic waves to travel and the distance they travel. It helps in determining the speed at which seismic waves propagate through the Earth's interior and provides information about the structure and composition of the Earth's layers.
Which is The most damaging of the three kinds of seismic waves?
The surface waves
When seismic waves interact with boundaries between different kinds of rock within earth they can be refracted?
Yes. You are true.
What is different about the seismic waves?
The way seismic waves are different are that they're slower than the p waves who move a lot faster to reach the earthquake.
Why do seismic waves change speed?
"True, the Seismic Waves change speed and direction when they encounter different materials."
What are the three different seismic waves?
Seismic Waves:Surface WavesPrimary WavesSecondary Waves-Hope this helps :D-Dinaly Is Cool.
Seismic waves travel through Earth's layers at different speeds depending on the what?
Density and the composition of the different layers affect the behavior of seismic waves.
What are the different types of seismic waves?
idk bitvh
What are two kinds of seismic wave?
Body Waves and surface waves. I know that because it says it in my science book.:D
How scientists use seismic waves to map the earth's interior?
Scientists use seismic waves to map Earth's interior by using seismographs that measure the times at which seismic waves arrive at different distances from an earthquake.
Explain how scientists use seismic waves to map the earth's interior?
scientists use seismic waves to map earths interior by seismographs that measure the times at witch seismic waves arrive at different distances from an earth quake.
Is seismic waves and earthquake waves the same?
Seismic waves are any waves that travel through the Earth. As such all earthquake waves are seismic waves, however not all seismic waves are caused by earthquakes.
What does seismic?
(not seismic, seismic wave)Seismic waves are waves of energy that travel through the earth.
