Comprehensive Convention on International Terrorism
Q. Which rice gain sized organ between two major arteries controls BP levels in the human body?- Published on 20 Sep 16a. Carotid body
b. Hippocampus
c. Amygdala
d. Thalamus
ANSWER: Carotid body
A new study has found that blood pressure level in the human body is controlled by carotid body- small organ the size of grain of rice located between two major arteries that provide blood to the brain
- Scientists at the University of Bristol have found that removing one carotid body from some patients with high blood pressure can provide immediate and sustained fall in blood pressure.
- This indicates that the carotid bodies appear to be a cause of high blood pressure, also known as hypertension.
- The fall in blood pressure was impressive more than medication for targeting the carotid body to treat hypertension
- Carotid bodies detect oxygen levels in the blood and when this falls, an alarm is raised by them to signal the brain to increase breathing and blood pressure
- High blood pressure treatment typically tackles the symptoms targeting the end organs such as the heart, kidneys and blood vessels, and not the causes, according to the researchers
- Patients responded to resection had raised carotid body activity. These patients breathed more at rest and produced exaggerated breathing responses when the oxygen level in their blood was lowered.
- WHO has identified hypertension as a single most important risk factor for disease and death.
