Professor Dave Explains
The Digestive System
We eat food every day, and most of us are aware that we do this so that our body can absorb nutrients that are inside the food, which we need to stay alive. But how does this work? What goes inside the body in between the time we put a...
Curated OER
The Respiratory System
Respiratory systems are different in worms, fish, and human lungs, and each are explained by Paul Andersen with his fabulous SMART Board. How are these respiratory systems similar? Keeping breathing surfaces moist is essential in all...
Khan Academy
The Lungs and Pulmonary System, Health and Medicine
The oxygen needed by our bodies to burn during respiration of glucose is obtained by ventilation. The anatomical structures involved in gaseous exchange are drawn and labeled. The explanations are excellent for a review or a student with...
Curated OER
The Respiratory System - How it Works?
Diagrams and video footage of people help show the structures and functions of the respiratory system. Exercise is highlighted, making this an accessible video for a health class.
Khan Academy
Khan Academy: Biology: The Lungs and Pulmonary System
A detailed account of human ventilation through the pulmonary system. [20:33]
Eastern Kentucky University
Gary Ritchison: The Respiratory System
Through a series of videos and readings, learn about the respiratory system.
Sophia Learning
Sophia: Digestive System Overview: Lesson 1
This lesson will identify the major structures and functions of the digestive system. It is 1 of 5 in the series titled "Digestive System Overview."
Sophia Learning
Sophia: Upper Respiratory Tract: Structure and Function Overview: Lesson 1
This lesson will give an overview of the major structures and functions associated with the upper respiratory tract. It is 1 of 2 in the series titled "Upper Respiratory Tract: Structure and Function Overview."
Khan Academy
Khan Academy: Tonsillopharyngitis Complications, Diagnosis, and Treatment
This video explains the illness strep throat, caused by the streptococcal bacteria. Learn what causes strep throat, diagnosis, complications, and treatment. [10:29]