Physiologically speaking, how can excessive dismay organize to cardiac arrest?
Please do not shy away from being technical.
A detailed response will be chosen best answer. Promise.
Thank you.
Answers:
You know that population who die in airplane crashes don't die from the crash itself but the knowledge that they are going to crash??!!
A heart attack happens when your cardiac muscle fail to get enough oxygen; oxygen being prerequisite to maintain cellular function.
When a person is exposed to excessive fear, it increases their heart rate via the sympathetic nervy system. Because the heart is beating faster than usual, it's going to require more oxygen that usual to maintain proper functioning.
The problem occurs when -in the midst of this increased demand- the cardiac vein can't provide enough oxygen rich blood to the cardiac muscles. Just like you're body would die if you didn't have enought oxygen to breathe, so does your heart muscle.
Cardiac vein that have narrowed due to atherosclerosis can not always supply blood in sufficient quantity to the beating heart. As a result, the muscle cells lose their function and begin to die. If satisfactory of them die, it will alter the way the heart beats and the effectiveness of those beat. A weakened heart muscle will not be able to pump blood effectively through your body, and just as the heart is dying, so may the creature be -- because at this point the whole system is suffering from a decreased level of oxygenated blood. Source(s): I'm a registered nurse.
Danielle D has a well brought-up explanation, but has confused veins and arteries. The heart muscle is supplied by the coronary ARTERIES.
If the heart muscle's oxygen requirement exceeds that of its oxygen supply, ischemia results. Prolonged or extensive ischemia can lead to infarction, which is cell release. There are also certain areas of the heart that control the electrical activity of the heart, and if those areas are impacted, heart block can occur. In a merciful with impaired cardiac function, heart block can lead to cardiac arrest.
Another possible explanation involves the increased production of epinephrine by the adrenal glands surrounded by response to stress. Epinephrine can cause arrhythmias, and some arrhythmias are lethal. Source(s): I'm a physician.
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A detailed response will be chosen best answer. Promise.
Thank you.
Answers:
You know that population who die in airplane crashes don't die from the crash itself but the knowledge that they are going to crash??!!
A heart attack happens when your cardiac muscle fail to get enough oxygen; oxygen being prerequisite to maintain cellular function.
When a person is exposed to excessive fear, it increases their heart rate via the sympathetic nervy system. Because the heart is beating faster than usual, it's going to require more oxygen that usual to maintain proper functioning.
The problem occurs when -in the midst of this increased demand- the cardiac vein can't provide enough oxygen rich blood to the cardiac muscles. Just like you're body would die if you didn't have enought oxygen to breathe, so does your heart muscle.
Cardiac vein that have narrowed due to atherosclerosis can not always supply blood in sufficient quantity to the beating heart. As a result, the muscle cells lose their function and begin to die. If satisfactory of them die, it will alter the way the heart beats and the effectiveness of those beat. A weakened heart muscle will not be able to pump blood effectively through your body, and just as the heart is dying, so may the creature be -- because at this point the whole system is suffering from a decreased level of oxygenated blood. Source(s): I'm a registered nurse.
Danielle D has a well brought-up explanation, but has confused veins and arteries. The heart muscle is supplied by the coronary ARTERIES.
If the heart muscle's oxygen requirement exceeds that of its oxygen supply, ischemia results. Prolonged or extensive ischemia can lead to infarction, which is cell release. There are also certain areas of the heart that control the electrical activity of the heart, and if those areas are impacted, heart block can occur. In a merciful with impaired cardiac function, heart block can lead to cardiac arrest.
Another possible explanation involves the increased production of epinephrine by the adrenal glands surrounded by response to stress. Epinephrine can cause arrhythmias, and some arrhythmias are lethal. Source(s): I'm a physician.
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