Full Form of NO

Full formMedical & Health
NOstands for

Nitric Oxide

What is NO?

Nitric oxide (NO) is a gaseous signaling molecule produced naturally in the human body. It plays a critical role in vasodilation, neurotransmission, and immune response. In the medical field, NO is used therapeutically to treat pulmonary hypertension in newborns and as a vasodilator in adult cardiac care. Indian hospitals, especially neonatal intensive care units (NICUs), regularly administer inhaled nitric oxide for respiratory failure. It is also studied extensively in Indian medical curricula for its role in endothelial function and cellular communication. For students preparing for NEET, AIIMS, or PGIMER exams, nitric oxide is a high-yield topic under physiology and pharmacology. Beyond clinical medicine, environmental NO is a pollutant; its atmospheric chemistry is tested in Indian competitive exams like JEE Advanced. The molecule’s dual biological and environmental relevance makes it a frequently tested concept in both medical and engineering entrance tests across the country.

NO का फुल फॉर्म

नाइट्रिक ऑक्साइड

Example

The neonatologist prescribed inhaled nitric oxide at 20 ppm for the preterm infant with persistent pulmonary hypertension.

NO — frequently asked questions

What is the full form of NO?
The full form of NO is Nitric Oxide, a gaseous signaling molecule important for vasodilation and immune function.
What is the role of nitric oxide in the human body?
Nitric oxide relaxes the inner muscles of blood vessels, increasing blood flow. It also functions as a neurotransmitter and helps immune cells kill pathogens.
Is nitric oxide tested in Indian medical entrance exams?
Yes, nitric oxide is frequently asked in NEET, AIIMS, and PGIMER exams under physiology, pharmacology, and respiration topics.
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