More science projects and experiments
A collection of science projects, videos and experiments for various grades and topics.
Science Projects or Science Experiments: Grades 5 & 6
The Respiratory System
Human Body - Lungs
Video about the human body, the lungs
How the Body Works : Breathing
How the Body Works: The Respiratory System
The network of air tubes spreading out just like the branches and twigs of a tree, form the structure of the lungs. The trachea, or windpipe, divides into two bronchi and these on entering the lungs, divide into bronchioles, alveolar ducts, alveolar sacs and individual alveoli. The right ventricle of the heart pumps deoxygenated blood to the lungs via the pulmonary arteries. At the alveoli, gaseous exchange of oxygen and carbon dioxide takes place between air in the lungs and blood in surrounding capillaries.
Movie to explain the Respiratory System (with questions)
This 3D medical animation begins with a detailed description of the anatomy and physiology of the lungs (Pulmonary system). It describes the pleura and diaphragm which aid in lung expansion. The animation also deals with lung cancer and the role of lymph in transporting bacteria, allergens and cancer cells away from the lungs and to the lymph nodes.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.