StudyGallery.com ANS Neurotransmitters

How many remote controls do you have?
How many devices can you control with a remote?
Have you heard or epinephrine or Epi-pen?

Neurotransmitters target specific receptors Neurotransmitters are like different remote controls. Some stimulate multiple items

Each transmitter performs a different function

Sympathetic and Parasympathetic are opposites for homeostasis Parachute slows things down. Sympathetic and Parasympathetic are opposites

Sympathetic is "fight or flight" and Parasympathetic is "rest and digest" Parachute slows things down. Sympathetic and Parasympathetic are opposites

Sympathetic Nervous System = Adrenergic System Adrenergic uses the same prefix as Adrenaline. Adrenaline is your fight or flight response

Adrenergic receptors are Alpha 1 & 2, Beta 1 & 2 Adrenergic uses the same prefix as adrenaline. I think of Angelina and Brad fighting so their adrenaline is pumping.

Noradrenaline = Norepinephrine

Adrenaline = Epinephrine

Adrenergic receptors use norepinephrine as neurotransmitter for responses Adrenergic receptors are part of the sympathetic nervous system. The sympathetic nervous system uses norepinephrine and epinephrine

Parasympathetic nervous system = Cholinergic System

Cholinergic receptors are Nictonic and Muscarinic

Cholinergic receptors use acetylcholine (ACh) as neurotransmitter for responses The key sound is “chol”.

Parasympathetic receptors cause smooth muscle contraction Rest and digest using parachute

Two types of muscarinic receptors: direct-acting and indirect-acting

Acetylcholine
Muscarinic Receptors, Nicotinic Receptors

Alpha Receptors
Alpha 1, Alpha 2

Beta 1
Heart

Beta 2
Smooth muscle

Beta blocker
Beta Receptors, Blood Pressure, Heart

Beta Receptors
Beta 1, Beta 2

Epinephrine
Alpha Receptors, Beta Receptors

Nervous System
Central Nervous System, Peripheral Nervous System

Norepinephrine
Alpha Receptors, Beta Receptors

Parasympathetic Nervous System
Muscarinic Receptors, Nicotinic Receptors

Peripheral Nervous System
Parasympathetic Nervous System, Sympathetic Nervous System

Sympathetic Nervous System
Alpha Receptors, Beta Receptors

Which receptors stimulate the parasympathetic nervous system? Cholinergic Acetylcholine is the neurotransmitter for the parasympathetic nervous system. "Chol" is the keyword for cholinergic

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What muscle do muscarinic receptors stimulate? Smooth

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Norepinephrine Sympathetic

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Dopamine Sympathetic

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What does norepinephrine do to arterial pressure? Increase

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What does epinephrine do to the heart rate? Increases

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Epinephrine is part of which system? Sympathetic

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Acetylcholine is part of which system? Parasympathetic

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Norepinephrine Adrenergic Agonist

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Acetycholine Cholinergic Agonist

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Epinephrine Adrenergic Agonist

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Activation of receptor agonist

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Blocks receptor antagonist

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What is muscarinic a receptor for? Acetycholine

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What is blocked by a Beta Blocker? Norepinephrine

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What do anticholinergic drugs block? Acetylcholine Cholinergic drugs use acetylcholine. "Anti" would mean against or block.

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What do most sympathetic postganglionic fibers release? Norepinephrine

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What is nicotinic a receptor for? Acetycholine Nicotinic is under the cholinergic branch. Cholinergic is under the parasympathetic branch. Cholinergic uses acetylcholine.