The receptor with the first rank order ( for example for blood vessel contraction ) he called " alpha adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ), while the receptor with the second rank order ( for instance for stimulation of the heart, but also for bronchodilation ) he called " beta adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ) . 3 This concept of two fundamental types of receptors is directly opposed to the concept of two mediator substances ( " sympathin E " and " sympathin I " ) as propounded by Cannon and Rosenblueth and now widely quoted as law of physiology . & There is only one adrenergic neuro-hormone, or " sympathin ", and that " sympathin " is identical with epinephrine .
12.
The receptor with the first rank order ( for example for blood vessel contraction ) he called " alpha adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ), while the receptor with the second rank order ( for instance for stimulation of the heart, but also for bronchodilation ) he called " beta adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ) . 3 This concept of two fundamental types of receptors is directly opposed to the concept of two mediator substances ( " sympathin E " and " sympathin I " ) as propounded by Cannon and Rosenblueth and now widely quoted as law of physiology . & There is only one adrenergic neuro-hormone, or " sympathin ", and that " sympathin " is identical with epinephrine .
13.
The receptor with the first rank order ( for example for blood vessel contraction ) he called " alpha adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ), while the receptor with the second rank order ( for instance for stimulation of the heart, but also for bronchodilation ) he called " beta adrenotropic receptor " ( now " ?-adrenoceptor " or " ?-adrenergic receptor " ) . 3 This concept of two fundamental types of receptors is directly opposed to the concept of two mediator substances ( " sympathin E " and " sympathin I " ) as propounded by Cannon and Rosenblueth and now widely quoted as law of physiology . & There is only one adrenergic neuro-hormone, or " sympathin ", and that " sympathin " is identical with epinephrine .
