Nervous System Functions and Neurotransmitters

Front

What does the sympathetic nervous system prepare the body for?

Back

Fight-or-flight

Front

What does the parasympathetic nervous system promote?

Back

Rest-and-digest

Front

What is the sympathetic neurotransmitter at effector organs (postganglionic)?

Back

Norepinephrine (NE)

Front

What is the parasympathetic neurotransmitter at effector organs (postganglionic)?

Back

Acetylcholine (ACh)

Front

What effect does the sympathetic nervous system have on heart rate?

Back

Increases heart

Front

What effect does the parasympathetic nervous system have on heart rate?

Back

Decreases heart rate (↓HR)

Front

What effect does the sympathetic nervous system have on bronchioles (airways)?

Back

Dilates (bronchodilation)

Front

What effect does the parasympathetic nervous system have on bronchioles?

Back

Constricts (bronchoconstriction)

Front

What effect does the sympathetic nervous system have on GI motility (peristalsis)?

Back

Decreases peristalsis

Front

Atropine blocks which receptors, causing tachycardia?

Back

M2 muscarinic receptors