Final answer:
The correct term for the type of transmission used by the adrenal medulla is neurohumoral transmission.
Step-by-step explanation:
The correct term for the type of transmission that the adrenal medulla uses to exert its post-ganglionic sympathetic effects is neurohumoral transmission. Neurohumoral transmission is a type of chemical transmission, where chemical signals (neurotransmitters or hormones) are used to transmit information between neurons or from neurons to target organs.