Last Minute Lecture

Mind, Brain, and Behavior — Neural Systems, Brain Structure, and Plasticity Explained | Psychology Chapter 2 Summary In this comprehensive summary of Chapter 2 from Psychology (13th Edition) by David G. Myers and C. Nathan DeWall, we delve into the biological foundations of psychology. This chapter emphasizes the inseparable connection between psychological processes and their biological underpinnings in the brain and nervous system. Watch the full YouTube podcast summary to hear the detailed explanation of neural systems and brain functions. The Nervous System: Building Blocks of Behavior The nervous system serves as the body's communication network. At its core are neurons , specialized cells that transmit electrical and chemical signals. Key components include: Dendrites: Receive incoming signals. Axons: Carry electrical impulses away from the neuron’s cell body. Myelin Sheath: Fatty covering that speeds neural transmission. Synapse: The junction wh...

Animal Hormones and Endocrine Signaling Explained — Hormonal Regulation, Feedback, and Endocrine Glands | Chapter 45 of Campbell Biology Hormones are chemical messengers that coordinate nearly every physiological process in animals—from metabolism and growth to stress response and reproduction. Chapter 45 of Biology explores the intricate world of animal endocrine signaling, highlighting how hormones are produced, released, and regulated to maintain homeostasis and ensure proper body function. The chapter details major endocrine glands, key hormones, feedback mechanisms, and the interplay between the nervous and endocrine systems. Watch the podcast summary below for a full overview, then read on for expanded explanations, essential glossary terms, and real-world connections in animal physiology. Introduction: The Role of Hormones in Animal Physiology Hormones regulate diverse body functions by traveling through the bloodstream to target cells. The endocrine system—compr...