Question

1. how does the endocrine system transmit information and interact with the nervous system?
2. endocrine system chart

hormones	release point(s)	function
oxytocin
cortisol

1. what are psychoactive drugs and how do they impact the body?

a. substance use disorder:

1. chart of psychoactive drugs

substance	category	positive effects	negative effects	misc.
barbiturates

Explanation:

1. The endocrine system uses hormones as chemical messengers. Hormones are secreted into the bloodstream and travel to target cells. They interact with the nervous system through a complex feedback - loop mechanism to regulate body functions. For example, the hypothalamus links the nervous and endocrine systems, releasing hormones that control the pituitary gland, which in turn regulates other endocrine glands.
2. Adrenaline: Release point is the adrenal glands. Function is to prepare the body for the "fight - or - flight" response by increasing heart rate, blood pressure, and energy supply. Oxytocin: Released by the posterior pituitary gland. It plays a role in social bonding, sexual reproduction, and childbirth (stimulating uterine contractions). Cortisol: Released by the adrenal cortex. It helps the body respond to stress, regulates metabolism, and has anti - inflammatory effects.
3. Psychoactive drugs are substances that cross the blood - brain barrier and alter mental states by affecting neurotransmitter systems. They can have various impacts such as changing mood, perception, and behavior. Substance use disorder is a pattern of substance use that leads to significant impairment or distress, including tolerance, withdrawal, and continued use despite negative consequences.
4. Alcohol: Category is a depressant. Positive effects in moderation may include relaxation and social facilitation. Negative effects include impaired judgment, liver damage, and increased risk of accidents. Miscellaneous: Can lead to addiction. Barbiturates: Category is a depressant. Positive effects historically were used as sedatives and anesthetics. Negative effects include respiratory depression, risk of overdose, and physical dependence. Miscellaneous: High potential for abuse.

Answer:

1. The endocrine system uses hormones as chemical messengers, secreted into the bloodstream, and interacts with the nervous system via feedback loops.
2. Adrenaline: Adrenal glands, "Fight - or - flight" response. Oxytocin: Posterior pituitary gland, Social bonding, childbirth. Cortisol: Adrenal cortex, Stress response, metabolism regulation.
3. Psychoactive drugs cross the blood - brain barrier and affect neurotransmitter systems, altering mental states. Substance use disorder is a pattern of use causing impairment or distress.
4. Alcohol: Depressant, Relaxation (positive), Impaired judgment (negative), Addiction (misc). Barbiturates: Depressant, Sedation (positive), Respiratory depression (negative), High abuse potential (misc).