Final answer:
The term that accurately describes the physical and emotional reliance on narcotics is drug dependence, which includes both physical and psychological dependence.
Step-by-step explanation:
The term that best describes the physical and emotional reliance of patients on narcotics is drug dependence. Drug dependence encompasses both physical dependence and psychological dependence. Physical dependence is the physiological adaptation of the body to the presence of a substance, leading to withdrawal symptoms upon cessation. Psychological dependence is understood as an emotional need for a drug, often taken to alleviate psychological distress. This type of dependence is characterized by a craving for the drug and can manifest psychological withdrawal symptoms such as anxiety and depression. Understanding the difference between these two forms of dependence is critical for effectively treating addiction.