Yes, the lack of atmospheric pressure in space would cause the gases and fluids in your body to expand, but your body would not explode. Instead, you would experience a condition called ebullism, where fluids in your body would vaporize and you would lose consciousness due to lack of oxygen.
The kidneys retain salt when the blood pressure is low. This keeps fluid in the body, thus maintaining the blood pressure. The kidneys cause vasoconstriction in the body when the blood pressure is low. This raises the blood pressure.
It's not the zero gravity which gets you, it's the vacuum, which would cause some degree of explosion. In our normal environment we are surrounded by air with a pressure of 24 pounds per square inch, so when that pressure is removed, there is a lot of internal pressure that will expel gas and fluid (the fluid will also be boiling, because it is the pressure of the air which normally keeps water or aqueous fluids from boiling at normal body temperature). But although parts of the body will explode, most of the body will remain, it's not like a bomb going off and leaving nothing but an expanding cloud of debris.
You would probably die. Dehidration as the salt would draw the moisture from your body. Your sodium levels in your body would be through the roof and your blood pressure would probably cause a heart attack or stroke.
No, the body is protecting it.
There are several things that can cause this. Hypovolemic shock comes to mind. This means you may have too little blood flowing in your body. This, by its self, will cause your blood pressure to fall. When your body recognizes that the blood pressure is too low (because your tissues will not be being perfused adequately), your heart rate will increase to attempt to compensate for the low blood pressure.
A stroke where the left side of the brain was blocked. The left side of the brain controls the right side of the body, so any damage to it would affect the right side of the body
it won't cause diarrhea but it will raise your blood pressure.
Pressure differentials are a cause of structural movement. Since the human body's internal pressure is basically that of atmospheric pressure, the human body experiences no change in structure. When the human body is exposed to vacuum pressure such as in space, the human bodies pressure would exert a force greater than that of the vacuum resulting in the human body to expand...(and explode ). When submerged beneath the ocean at great depths, the human body's internal pressure would not be enough to "push" against the force of the water and would implode...
Yes.
It's important to know the air pressure your body is accustomed to because sudden changes in pressure can cause discomfort or health issues, especially when flying or diving. Understanding the pressure your body is used to helps in preparing for changes, such as equalizing ear pressure to avoid discomfort.
without pressure the human body would explode, it is made for ~1 atosphere of pressure..