Browse Tag: Kidney

Peripheral resistance

How to overcome hypertension4Peripheral resistance

Arteries play a more active role in regulating blood pressure. The brain is a part of the sympathetic nervous system, which is used to understand the fluctuations in blood pressure through a special sensor on the wall. They feel the pressure of the arterial wall to rise or fall, and this kind of information is transmitted to the brain. When the brain receives a signal of high blood pressure, it sends out information to relax the blood vessels through the collection of nerve cells (blood vessels).
The brain also monitors the amount of oxygen and nutrients the body needs. It regulates blood pressure and blood flow to ensure that the needs of each organization can be met. When the body rests, the brain lowers blood pressure, when the body is under a variety of stress (including the pressure of wake up), the brain will be high blood pressure. The help of the blood vessels to relax the nerve to the changes is to tell the arteries to relax (to lower blood pressure) or to shrink (L hypertension).
As mentioned above, the brain through. Inform. Adrenaline and norepinephrine are the way to get the body ready for the unexpected. These hormones are suitable for a specific organization, like a key to open a lock, the lock is called a receptor, and when the hormone enters, it will start a specific action. The heart also has this “lock”, it is called a receptor. When adrenaline and norepinephrine enter the receptors, the heart beats faster. E- receptors were also in the kidney. When adrenaline and norepinephrine enter these receptors, the kidneys are stimulated to produce renin. There is a drug known as e- receptor blocker, which is the role of the receptor to enter the target and prevent the increase of blood pressure and adrenaline and norepinephrine.
Epinephrine and norepinephrine also enter the a- in the arteries. When this happens, the arteries will shrink, and then the blood pressure will rise. The number of calcium in the muscle cells is dependent on the wall of the arteries and veins. This contraction is caused by a small amount of calcium entering the cell through a tiny channel called the calcium channel. You may have heard of a drug called calcium antagonists, which block the contraction of the vessel wall by blocking the passage of calcium into the cell. The A receptor blocker is a drug that acts by stopping the contraction of adrenaline and noradrenaline.
In the last section, the renin is released from the kidney and other tissues such as the liver, which is released when the body needs to rise. However, renin does not directly affect blood pressure. More specifically, it triggers a chemical reaction that causes one to be converted into another protein, which is converted to angiotensin. If angiotensin encountered vascular angiotensin-converting enzyme, angiotensin converting enzyme, you may heard of angiotensin converting enzyme inhibitor, Yuan is a stop the drugs). This produces another product called vascular angiotensin “. Angiotensin is an active chemical, which can cause arterial contraction and release of aldosterone. Renin angiotensin aldosterone system has not been fully studied, but the study shows that it is essential for the development of hypertension. , a new type of drug called angiotensin blockers is interfering with the effect of this potent chemical.
Many other factors affect the blood vessel resistance. Too much liquid and increase the volume, make the organization become stiff. Arteries must be harder to shrink to the blood into the tissue, blood pressure and so on.
Blood pressure increases with age, and this is because the arteries become more rigid and less flexible, resulting in more resistance to blood flow. Many of the arteries will become narrow and blocked by the accumulation of fat debris over the years, thereby increasing peripheral resistance, which can lead to higher blood pressure.

Cardiac output


How to overcome hypertension2

Cardiac output
The heart is controlled by the brain, which allows blood to flow at a steady rate of 5.5 liters per minute. If the fluid overload, blood will be increased, cardiac output and blood pressure were all increased. The greater the amount of fluid, the more difficult the heart and blood vessels to make the blood flow. Diuretic is a common drug for treating hypertension, which works by reducing the amount of fluid in the body.
Kidney (two in the back of the waist of the bean shaped organs) to control the amount of fluid circulation in the body. They control the amount of fluid in a person’s urine, either by keeping them in a salt or by keeping them in water. Usually if you eat too much salt, the kidney will emit an excess of sodium and the relative amount of water. However, if your kidneys are unable to rule out the excess sodium, your body will keep the moisture, which will increase the amount of blood and elevated blood pressure.
There are two important chemical substances and maintain the balance of water and sodium in the body. An enzyme called renin (which is secreted by the kidneys, which can accelerate the rate of chemical reaction in the body). The amount of the kidney in the body fluid (which is based on the amount of salt consumed) and the blood pressure applied to the kidney to determine when to release the renin. The lower the pressure, the more the ridge is released. Renin can speed up the rate of angiotensin (a protein in the blood) to a blood vessel. In the next chapter, the reaction and the results are presented.
The side product of the renin can also stimulate the adrenal gland, the right side of the kidney, to produce a chemical that is related to the level of sodium in the body. This chemical is a hormone called aldosterone. And the enzyme is not the same, the hormone will enter a single cell and to serve as a chemical messenger to their target tissues. Aldosterone enters the blood from the adrenal gland and then enters the kidney. The chemical information that aldosterone gives to the kidneys is to retain more sodium and water. The holding capacity of sodium and water increased blood pressure.
Other hormones that affect cardiac output and blood pressure. When you are in any stressful situation, your brain is in the middle of a sudden condition. One way is to send the information to an organ through the sympathetic nervous system. The sympathetic nervous system is a part of the vegetative nervous system, while the vegetative nervous system belongs to the nervous system. The system is responsible for controlling involuntary movements such as breathing, digesting food and controlling blood pressure.
When the adrenal gland is received from the sympathetic nervous system, they secrete epinephrine and norepinephrine, which have different effects on the body. Adrenaline makes the heart beat faster, and that’s what’s going on in the next chapter. As you would like to be the heart of the heart of the sudden rise in heart rate will increase the output of the heart, so high blood pressure.