| Term 
 
        | Alpha 1 and Alpha 2 receptors equally activated (less on some b1 receptors) |  | Definition 
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        | Term 
 
        | Equal, direct activating effect on alpha 1, 2, beta 1, 2 |  | Definition 
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        | Term 
 
        | Directly acts on and activates beta 1 and beta 2. |  | Definition 
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        | Term 
 
        | Directly acts on alpha 1, beta 1, beta 2 and receptors in the renal vessels causing vasodilation. |  | Definition 
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        | Term 
 
        | Directly acts on B1 receptors, and a few other non-specific receptors |  | Definition 
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        | Term 
 
        | Acts directly on and activates alpha 1 receptors (4 drugs) |  | Definition 
 
        | Phenylephrine Tetrahydrozoline Naphazoline Oxymetazoline |  | 
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        | Term 
 
        | Acts directly on Beta 2 receptors (will see an effect on beta 1 receptors in high dosages). 7 Drugs |  | Definition 
 
        | Ritodrine Metaproterenol Albuterol Salbutamol Salmeterol Formoterol Terbutaline |  | 
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