Neurotransmitters and Their Functions

What is the primary role of neurotransmitters in the nervous system?

• To digest food

• To store energy

• To transmit signals between neurons

• To produce hormones

Which type of receptor is involved in skeletal muscle contraction?

• Beta 2

• Alpha 1

• Nicotinic

• Muscarinic

Which neurotransmitter is primarily involved in the 'rest and digest' response?

• Substance P

• Acetylcholine

• Dopamine

• Noradrenaline

What is the primary neurotransmitter used by the sympathetic nervous system?

• Noradrenaline

• Dopamine

• Acetylcholine

• Serotonin

Which neurotransmitter is known as the 'feel-good' molecule?

• Dopamine

• Glutamate

• Serotonin

• GABA

Which serotonin receptor types are excitatory?

• 2, 3, 4, 6, and 7

• Only 1

• Only 5

• 1 and 5

What role does serotonin play in the gastrointestinal tract?

• Inhibits digestion

• Stimulates contraction

• Reduces motility

• Increases blood flow

What is the main inhibitory neurotransmitter in the nervous system?

• Glutamate

• GABA

• Dopamine

• Substance P

Which neurotransmitter is associated with pain and inflammation?

• GABA

• Serotonin

• Glutamate

• Substance P

What is the effect of glutamate toxicity in the brain?

• Enhances memory

• Kills brain cells

• Improves mood

• Reduces pain