Drugs and Society Chapter 4 (2026 Updated) – Study Guide, Practice Questions & Key
Concepts Review
Homeostasis - correct answer ✔✔maintenance of internal stability; often biochemical in nature
Hormones - correct answer ✔✔chemical messengers released into the blood by glands
Nervous System - correct answer ✔✔relating to the brain, spinal cord, neurons, and their
associated elements
Endocrine System - correct answer ✔✔relating to hormones, their functions, and sources
Neurons - correct answer ✔✔specialized nerve cells that make up the nervous system and
release neurotransmitters
Glia - correct answer ✔✔supporting cells that are critical for protecting and providing
sustenance to the neurons
Axons - correct answer ✔✔an extension of the neuronal cell body along which electrochemical
signals travel
Receptors - correct answer ✔✔special proteins in a membrane that are activated by natural
substances or drugs to alter cell function
Genetics - correct answer ✔✔study of cellular DNA and its functions
Molecular Biology - correct answer ✔✔study of cellular functions and their regulation
Concepts Review
Homeostasis - correct answer ✔✔maintenance of internal stability; often biochemical in nature
Hormones - correct answer ✔✔chemical messengers released into the blood by glands
Nervous System - correct answer ✔✔relating to the brain, spinal cord, neurons, and their
associated elements
Endocrine System - correct answer ✔✔relating to hormones, their functions, and sources
Neurons - correct answer ✔✔specialized nerve cells that make up the nervous system and
release neurotransmitters
Glia - correct answer ✔✔supporting cells that are critical for protecting and providing
sustenance to the neurons
Axons - correct answer ✔✔an extension of the neuronal cell body along which electrochemical
signals travel
Receptors - correct answer ✔✔special proteins in a membrane that are activated by natural
substances or drugs to alter cell function
Genetics - correct answer ✔✔study of cellular DNA and its functions
Molecular Biology - correct answer ✔✔study of cellular functions and their regulation
