NEET PG DENTAL EXAM

EMBRYOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which neurotransmitter is mostly responsible for alertness and arousal?
A
Norepinephrine
B
Serotonin
C
Dopamine
D
GABA
Explanation: 

Detailed explanation-1: -Norepinephrine. Norepinephrine (also called noradrenaline) increases blood pressure and heart rate. It’s most widely known for its effects on alertness, arousal, decision-making, attention and focus.

Detailed explanation-2: -First identified in the 1940s by Swedish physiologist Ulf von Euler, norepinephrine, also known as noradrenaline, is a neurotransmitter of the brain that plays an essential role in the regulation of arousal, attention, cognitive function, and stress reactions.

Detailed explanation-3: -Norepinephrine also called noradrenaline is both a hormone, produced by the adrenal glands, and a neurotransmitter, a chemical messenger which transmits signals across nerve endings in the body. Norepinephrine is produced in the inner part of the adrenal glands, also called the adrenal medulla.

There is 1 question to complete.