Homeostasis

Video Description

Official Ninja Nerd Website: https://ninjanerd.org You can find the NOTES and ILLUSTRATIONS for this lecture on our website at: https://www.ninjanerd.org/lecture/homeostasis Ninja Nerds! In this introductory anatomy and physiology lecture, Professor Zach Murphy explains the foundational concept of Homeostasis—the body’s ability to maintain a stable internal environment despite external changes. This lecture is essential for understanding how all physiological systems work together to support life. We begin by defining homeostasis and discussing its importance in regulating variables such as body temperature, blood pressure, pH, glucose levels, and fluid balance. You’ll learn how the body uses negative feedback loops to detect changes, initiate responses, and restore balance, with examples like thermoregulation and blood glucose control. The lecture also covers positive feedback mechanisms, which amplify changes for specific purposes, such as during childbirth or blood clotting. We highlight the roles of receptors, control centers, and effectors in maintaining homeostasis through real-life clinical examples. This lecture sets the stage for everything that follows in anatomy and physiology, giving you the framework to understand how the body stays in equilibrium and what happens when that balance is disrupted. Enjoy the lecture and support us below! Table of Contents: 0:00 Lab 0:07 Homeostasis Introduction 0:39 Defining Homeostasis 1:00 Negative Feedback Mechanism 13:22 Positive Feedback Mechanism 21:37 Comment, Like, SUBSCRIBE! 🌐 Official Links Website: https://www.ninjanerd.org Podcast: https://podcast.ninjanerd.org Store: https://merch.ninjanerd.org 📱 Social Media https://www.tiktok.com/@ninjanerdlectures https://www.instagram.com/ninjanerdlectures https://www.facebook.com/ninjanerdlectures https://x.com/ninjanerdsci/ https://www.linkedin.com/company/ninja-nerd/ 💬 Join Our Community Discord: https://discord.gg/3srTG4dngW #ninjanerd #homeostasis #anatomy