Question

what are the two subtypes of adrenergic receptors?
epsilon and zeta.
kappa and mu.
gamma and delta.
alpha and beta.
sigma and omega.

Explanation:

Adrenergic receptors have two main subtypes, alpha - and beta - adrenergic receptors. These are well - known in the study of the sympathetic nervous system and responses to neurotransmitters like norepinephrine and epinephrine.

Answer:

Alpha and beta.