https://stream.echo6.co/videos/watch/4c73544f-ebe4-45ec-886d-dab2e6d29b95 Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! In this respiratory physiology lecture, Professor Zach Murphy explores how the thickness and surface area of the respiratory membrane influence the efficiency of external respiration and gas exchange between the alveoli and pulmonary capillaries. We begin by reviewing the structure of the respiratory membrane, including the alveolar epithelium, fused basement membrane, and capillary endothelium. You’ll learn how this thin, specialized barrier is designed to rapidly diffuse oxygen and carbon dioxide, governed by Fick’s Law of Diffusion. The lecture explains how increased membrane thickness—as seen in conditions like pulmonary fibrosis, edema, or pneumonia—impairs gas exchange by slowing diffusion. Conversely, a decreased surface area, as in emphysema or lung resection, limits the total area available for diffusion, reducing oxygen delivery to the blood. Enjoy the lecture and support us below! 🌐 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 #ExternalRespiration #Respiratory Wed, 15 Apr 2026 13:42:04 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/4c73544f-ebe4-45ec-886d-dab2e6d29b95 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.