peripheral blood vesels
Heart
The alpha adrenergic receptors are located in the effector organs of sympathetic nervous system. They are the most common type of alpha adrenergic receptor. Alpha adrenergic receptors tend to be excitatory. They have a greater affinity for nonepinephrine than epinephrine.
If a cell has α-adrenergic receptors, it is sensitive to
Sensory receptors for cold are located in the dermis, the are formally called free nerve endings.
pain receptors
cochlea
alpha 1, alpha 2, beta 1, beta 2
The alpha adrenergic receptors are located in the effector organs of sympathetic nervous system. They are the most common type of alpha adrenergic receptor. Alpha adrenergic receptors tend to be excitatory. They have a greater affinity for nonepinephrine than epinephrine.
kidney
Clonidine acts on alpha-2 receptors - I have never read that it has activity on mu receptors.
If a cell has α-adrenergic receptors, it is sensitive to
The neurotransmitter for sympathetic nervous system is norepinephrine (or also called noradrenaline) that acts on adrenergic receptors of the effector organ (alpha 1, beta 1, beta 2 receptors). The adrenergic receptors are G-protein coupled.
Taste receptors type 1 (sweet), and type 2 (bitter).
constriction of the blood vessels
where are receptors for non-steroid hormones located
In vertebrates the olfactory receptors are located in the cilia of the olfactory sensory neurons. In insects olfactory receptors are located on the antennae and other chemo sensory organs.
Sensory receptors for cold are located in the dermis, the are formally called free nerve endings.
Pain Receptors