All About the Human Respiratory System Medically reviewed by Alana Biggers, M.D., MPH — Written by Eleesha Lockett, MS on March 23, 2020 Anatomy & function ...

Human Respiratory System: Anatomy of the Lungs. Posted: March 14, 2025 | Last updated: March 19, 2025. This 1930s educational film provides a detailed exploration of the respiratory and excretory ...

Take a deep breath — here's how the respiratory system works. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The human respiratory ...

Alveoli are the basic functional units of the human respiratory system, acting as tiny air sacs that exchange gases. Air inhaled through the mouth and nose flows into the lungs through the ...

AcceGen offers 41 different types of human respiratory system primary cells that are well suited for research use. Available primary cells include Human Nasal Epithelial Cells (HNEpC), Human Bronchial ...

We refer to an integrated unit as an organ system. Groups of organ systems work together to make complete, functional organisms, like us! There are 11 major organ systems in the human body.

GCSE Physical Education Applied anatomy and physiology learning resources for adults, children, parents and teachers.