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Are regulated by the autonomic nervous system


Are also regulated by the autonomic nervous system

Central NS:

Controls the Brain and Spinal Cord

Peripheral NS:

Controls the autonomic and somatic nervous systems

2 Parts of Autonomic NS:

Parasympathetic (cholinergic)
Sympathetic (adrenergic)

Fight or flight response:

Sympathetic Nervous System

Adrenergic Agents:

Drugs that stimulate the sympathetic nervous system

3 drugs that stimulate SNS:

Norepinephrine, Epinephrine, Dopamine

Andrenergic Drugs:


Epinephrine is:


Norepinephrine is:


Dopamine is:


Dobutamine is:


Phenylephrine is:


Alpha-Adrenergic Receptors:

Divided into Alpha 1 and Alpha 2 receptors, which are deifferentiated by their location on nerves

Alpha 1 Receptors:

Located on postsynaptic effector cells & accept neurotransmitters

Alpha 2 Receptors:

Located on PREsynaptic nerve terminals & control the release of neurotransmitters

Beta-Adrenergic Receptors:

Located on postsynaptic effector cells

Beta 1 adrenergic Receptors:

Located in the heart

Beta 2 adrenergic receptors:

Located in smooth muscle of the bronchioles, arterioles and visceral organs

β2-adrenergic agonists:

Also known as β2-adrenergic receptor agonists, are a class of drugs used to treat asthma and other pulmonary disease states.

Glycogenolysis (β2):

Biochemical breakdown of glycogen to glucose in the liver

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