Regulation of Blood Pressure

Regulation Of Normal Blood Pressure

You wonder how our body is maintaining a normal blood pressure in our body? So, basically, 

Blood pressure is regulated by means of two mechanisms

1. Short Term Mechanisms

Short term mechanism includes primarily the Nervous mechanism.

Nervous mechanism works by the action of vasomoter center and impulses from periphery. This includes reflexes such as

Baroreceptor Reflex

Chemoreceptor Reflex

Atrial and Pulmonary Artery Reflex

Brain Bridge Reflex

CNS Ischemic Reflex

Abdominal Compression Reflex

2. Long Term Mechanisms

By this we mean an elevated blood pressure is accomplished within days, weeks or months. Anyhow, long term mechanisms are proven to be more effective to maintain blood pressure. Long term mechanism include

a) Renal Mechanism

Renal mechanism regulate blood pressure by the regulation of ECF and renin-angiotensin mechanism.

b) Hormonal Mechanism 

Hormonal mechanism regulates blood pressure by releasing hormones that cause vasodilation and vasoconstriction.

c) Local Mechanism

Local mechanism works locally in tissues by causing local vasoconstriction and local vasodilation.